How many two-letter words are there in Words With Friends?

There are roughly a hundred valid two-letter words in Words With Friends. This guide lists nearly all of the common ones, grouped A to Z with a short meaning for each. A few obscure edge cases are best confirmed in-game, since the exact list can change with dictionary updates.

Yes. ZA is informal slang for pizza and is one of the most valuable two-letter plays because it lets you put a Z onto a bonus square. It is accepted in Words With Friends and in modern Scrabble dictionaries.

Are these the same as Scrabble's two-letter words?

Mostly, but not exactly. Words With Friends uses its own dictionary, separate from Scrabble's TWL and SOWPODS lists, so a small number of two-letter words are accepted in one game but not the other. If you play both, our dictionary differences guide explains which words carry over.

What is the highest-scoring two-letter word?

The best two-letter plays are the ones that use high-value tiles: words like EX, AX, ZA, QI, XU and XI let you place an X, Z or Q. Their real scoring power comes from landing one of those letters on a triple-letter or double-word square, where a tiny word can swing a large number of points.

How do I use two-letter words to score more?

Use them for parallel plays: lay a word alongside one already on the board so that each spot where your tiles meet the existing word also spells a valid two-letter word. Every one of those overlaps scores, turning a single placement into several words at once.

Two-letter words valid in Words With Friends (full list with meanings)

Two-letter words don't look like much, but they're some of the most useful tiles you can play in Words With Friends. They let you build off existing tiles in multiple directions, sneak into tight spaces on a crowded board, and rescue a turn when nothing bigger fits. Here's a full rundown of the valid two-letter words covered in this guide — and what each one actually means.

A close-up of scattered letter tiles — Photo by Brett Jordan on Pexels

Roughly a hundred two-letter words are playable in Words With Friends, and this guide lists nearly all of the common ones. They matter far more than their size suggests: a single two-letter word lets you make parallel plays alongside an existing word, dump awkward leftover tiles, and slip onto a triple-letter or double-word square for outsized points. Learn these and you'll almost always find a scoring move, even on a jammed board.

Why two-letter words matter more than they look

A two-letter word rarely wins you the turn on its own. What it actually does is let you form a second word perpendicular to one already on the board — turning one tile placement into two scoring words at once. Strong players keep a mental list of these specifically because they unlock plays that would otherwise be impossible on a crowded board. They are also your best escape hatch when you're holding clumsy tiles: an extra X, Q or Z that won't fit anywhere bigger can often be slotted into a two-letter word right on top of a premium square.

The full list, A to Z, with meanings

This table covers the most useful and most common valid two-letter plays, grouped by starting letter so you can scan quickly. It does not claim to be every accepted string in every ruleset — a handful of obscure edge cases are best confirmed in-game — but knowing these will cover the vast majority of real situations you'll face.

Words starting with A

Word	Meaning
AA	A type of rough, cindery lava.
AB	Informal short form of "abdominal muscle."
AD	Short form of "advertisement."
AE	A Scots word meaning "one" or "the only."
AG	Informal for "agriculture," used mostly in some U.S. regional slang.
AH	An exclamation of surprise, pain, or realization.
AI	A three-toed sloth; also commonly used now to mean "artificial intelligence" in newer word lists.
AL	A type of East Indian shrub.
AM	The present tense form of "to be," as in "I am."
AN	The indefinite article used before vowel sounds.
AR	The name of the letter R.
AS	Used to compare two things or describe simultaneous action.
AT	Indicates a specific location or point in time.
AW	An exclamation of sympathy, disappointment, or protest.
AX	A tool for chopping; also a verb meaning to cancel or remove.
AY	An exclamation of affirmation, similar to "yes."

Words starting with B and D

Word	Meaning
BA	In some traditions, a term for a part of the human soul or spirit.
BE	To exist.
BI	Informal short form of "bisexual."
BO	An informal term of address, similar to "pal" or "buddy."
BY	Indicates the means, agent, or proximity of something.
DE	Used informally as a prefix or short form in some dialects.
DO	To perform an action; also a musical note.

Words starting with E and F

Word	Meaning
EF	The name of the letter F.
EH	An exclamation seeking agreement or expressing mild surprise.
EL	An elevated railway.
EM	A unit of measurement in printing equal to the height of the type.
EN	A printing unit half the width of an em.
ER	A sound of hesitation in speech.
EW	An exclamation of disgust.
EX	Informal term for a former partner.
FA	A musical note in the solfège scale.

Quick tip: the high-value tiles — EX, AX, QI, ZA, XU, XI — are gold for dumping a hard letter onto a bonus square. If you're ever unsure whether one of them counts in your game, check it against the Word Unscrambler set to the right dictionary.

Words starting with G through M

Word	Meaning
GO	To move or travel; also a board game.
HA	An exclamation of triumph or surprise; also a unit of land area (hectare) in some word lists.
HE	Pronoun referring to a male person or animal.
HI	An informal greeting.
HM	An interjection expressing thought or hesitation.
HO	An exclamation, often used to express surprise or attract attention.
ID	The part of the psyche associated with instinctive drives.
IF	Introduces a conditional clause.
IN	Indicates location inside something.
IS	Third person singular present tense of "to be."
IT	A pronoun referring to a thing.
JO	A Scots word for "sweetheart."
KA	In Egyptian mythology, the spiritual double of a living person.
KI	A vital life force concept in some East Asian traditions (used in some larger word lists).
LA	A musical note; also an exclamation of surprise.
LI	A Chinese unit of distance.
LO	An exclamation calling attention to something, as in "lo and behold."
MA	Informal term for "mother."
ME	Pronoun referring to oneself.
MM	An interjection indicating agreement or pleasure.
MO	Informal short form of "moment."
MU	A letter of the Greek alphabet.
MY	Possessive pronoun.

Words starting with N through Z

Word	Meaning
NA	Informal way of saying "no" in some dialects.
NE	An archaic word meaning "nor."
NO	Used to express refusal or denial.
NU	A letter of the Greek alphabet.
OD	A hypothetical force once believed to pervade nature (appears in larger word lists).
OE	A whirlwind, in some dialects; also appears in certain specialized word lists.
OF	Indicates origin, possession, or association.
OH	An exclamation of surprise, pain, or realization.
OK	An expression of agreement or approval.
OM	A mantra used in meditation.
ON	Indicates position on top of or in contact with something.
OP	Informal short form of "operation," or referring to an artistic style ("op art").
OR	Used to connect alternatives.
OS	A mouthlike opening in an anatomical structure (used in larger/medical-leaning word lists).
OW	An exclamation of pain.
OX	A domesticated bovine animal.
OY	An exclamation of dismay or protest.
PA	Informal term for "father."
PE	A letter in the Hebrew alphabet.
PH	A unit used informally for measuring acidity (note: validity varies by word list).
PI	A Greek letter; also referring to the mathematical constant.
PO	A chamber pot, in older British usage.
QI	The vital energy concept from Chinese philosophy; one of the most useful tiles for playing a Q without a U.
RE	A musical note; also used to mean "regarding."
SH	Used to call for silence.
SI	"Yes" in Spanish and Italian, accepted in many English word game dictionaries.
SO	Used to indicate a result or degree.
TA	An informal way of saying "thank you," mainly in British usage.
TI	A musical note.
TO	Indicates direction or purpose.
UH	A sound of hesitation.
UM	A sound of hesitation, similar to "uh."
UN	Informal short form of "one," used in some dialects.
UP	Indicates upward direction or position.
US	Pronoun referring to a group including the speaker.
UT	An early musical note name, predecessor to "do."
WE	Pronoun referring to a group including the speaker.
WO	An archaic spelling of "woe."
XI	A letter of the Greek alphabet.
XU	A monetary unit used in Vietnam.
YA	Informal for "you."
YE	An archaic word for "you," also used to mean "the" in stylized old-fashioned spelling.
YO	An informal greeting or exclamation.
ZA	Informal slang for "pizza."

How to use two-letter words for parallel plays

The real power of a two-letter word shows up when you lay tiles alongside a word already on the board rather than off a single open letter. Drop a row of tiles parallel to an existing word and every place where your new tiles touch a tile above or below must also spell a valid two-letter word. Memorize a handful of these and a tight gap stops being a dead end: you can stack a four- or five-letter word next to an opponent's play and score every two-letter overlap it creates at the same time. That is how a cramped board turns into a high-scoring one.

A note on dictionary differences

Not every two-letter word above is guaranteed to be valid in every ruleset. Words With Friends uses its own dictionary, separate from the official Scrabble dictionaries (TWL and SOWPODS), and a small number of these words may be accepted in one but not the other. If you play both games, it's worth reading our guide to the dictionary differences so you know which words travel between them. When you're unsure whether a specific two-letter word is valid in your game, checking it against a word finder set to the right dictionary takes the guesswork out of it.

How to actually use this list

Memorizing all of these isn't necessary — but recognizing the most common ones (especially AA, AI, AT, BE, BY, DO, GO, HE, IF, IN, IS, IT, MY, NO, OF, OH, ON, OR, SO, TO, UP, US, WE) will noticeably improve your ability to build off existing tiles. The next time you're staring at a board with limited space, scan for opportunities to drop a single letter next to an existing word to form one of these — it's often the difference between passing up a turn and quietly stacking up points. If you want to see which longer words your rack can also make, the Word Unscrambler finds them instantly, and the Anagram Solver handles the full-rack rearrangements.

Keep going: compare the rule sets in our dictionary differences guide, learn how points add up in Scrabble scoring, or browse all our word-game guides.