U is the only letter that can sit silently inside your rack for turns on end and then suddenly pay for itself. This page lists 9,437 words that start with U, with live filtering as you type, sorting by length or points, and tap to copy on every entry. Type the tiles you actually hold into the filter and the list narrows instantly.
The UN engine
About three of every four entries here begin with UN, because the prefix attaches to almost any verb or adjective. That density is a gift when you are hunting a bingo: if your rack contains U and N, mentally set them aside as a prefix and unscramble the remaining five tiles into a base word. Plays like unboxed, unfixed, and unzipped fall out of racks that looked hopeless a moment earlier.
Small saves and strange tools
The short end of the list rewards a little study. Ugh and umm are legal ways to vent, an ulu is a curved knife from the Arctic, an udo is a Japanese salad plant, and urb is a real word for an urban area. The prize is umiaq, an open skin covered boat, which does two jobs at once: it starts with U and it ends in Q with no U after it, one of the few legal ways to unload a late Q.
Where the points are
Unzip and umiaq lead the five letter group at 16 points each, with unfix and unmix just behind. Long U entries are bingo country rather than score spikes, and the family runs all the way out to unrepresentativenesses, a twenty two letter monster that tops the length chart.
Five letters for the daily puzzle
The dictionary offers 176 five letter words that start with U. Ultra, union, urban, and usual cover common patterns, while unlit and upset help when a puzzle answer refuses to begin with a common consonant. U rarely opens the answer, so spend these on second and third guesses.
Every number above comes straight from the dictionary at build time. If you want the full story on the word list behind this site, the dictionary page covers its source and license.
Frequently Asked Questions
How many words start with the letter U?
The list on this page holds 9,437 words that start with U, out of 264,179 entries in the YAWL word list. Every count you see here is computed from the dictionary file when the site is built, so the numbers and the list itself can never disagree.
Why do so many U words begin with UN?
UN is the most productive prefix in English. It bolts onto verbs and adjectives to flip their meaning, so nearly any base word can spawn an UN cousin. Roughly three of every four entries on this page start with UN, which makes a rack holding U and N a strong starting point for a seven letter bingo.
What are the two letter U words?
There are 8 of them: uh, um, un, up, us, and ut. The first two are legal interjections, un means one, and ut is the old name for the musical note now called do. When a spare U is clogging your rack at the end of a game, these are the quickest doors out.
Why does another word finder show a different number of U words?
Different sites build on different lexicons. We use YAWL, an open list created for word games, and we publish its exact contents, license, and counts on our dictionary page. A site built on a larger commercial list will show more entries, but you will not be able to verify where its numbers come from.