Words That Start with UM

There are 23 words that start with UM on Word.ws, from 2 to 10 letters. The most common length is 5 letters (7 words). The words used most often are um, umbrella, umpire, umbilical and ump.

Meanings from Wiktionary. Not an official Scrabble, Words With Friends or Wordle word list.

2-letter words that start with UM

um4interj. Expression of hesitation, uncertainty or space filler in conversation.

3-letter words that start with UM

ume5n. Chinese plum, a species of Asian plum, Prunus mume.
ump7n. An umpire.
umu5n. An earth oven used in New Zealand, Samoa, and other Pacific islands...

4-letter words that start with UM

umbo8n. The boss of a shield, at or near the middle and usually projecting...

5-letter words that start with UM

umami9n. One of the five basic tastes, the savory taste of foods such as...
umbel9n. A flat-topped or rounded flower-cluster (= inflorescence) in which the...
umber9n. A brown clay, somewhat darker than ochre, which contains iron and...
umbra9n. The fully shaded inner region of a shadow cast by an opaque object.
umiak11n. A large, open boat made of skins stretched over a wooden frame that is...
ummah12n. The worldwide Muslim community.
umrah10n. A minor hajj, a lesser pilgrimage to Mecca, other than at the time of...

6-letter words that start with UM

umbral10adj. Of or relating to an umbra.
umlaut8n. An assimilatory process whereby a vowel is pronounced more like a...
umpire10n. An official who presides over a sports match.

7-letter words that start with UM

umbrage12n. A feeling of anger or annoyance caused by something offensive.
umpteen11det. Relatively large but unspecified in number.

8-letter words that start with UM

umbrella12n. A cloth-covered frame used for protection against rain or sun.
umeboshi15n. Pickled ume fruits.

9-letter words that start with UM

umbilical15adj. Of, or relating to, the navel (umbilicus) or the umbilical cord.
umbilicus15n. A navel.
umpteenth16adj. Occurring in a relatively large but unspecified position in a sequence.

10-letter words that start with UM

umbilicate16adj. Having a navel.

157 rare words that start with UM

Questions about these words

How many words that start with UM are there?: Word.ws lists 23 words that start with UM, plus 157 rare ones.
What are common words that start with UM?: um, umbrella, umpire, umbilical, ump, ummah, umber and umbra.
Which of the words that start with UM has the highest letter score?: umpteenth scores 16 points with the standard letter tile values.

Related word lists

Word lists and meanings adapted from the Wiktionary entry of each word. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out names, abbreviations, misspellings and offensive words, and ordered the most common words by how often they appear in English (wordfreq). Meanings from Wiktionary; this is not an official Scrabble, Words With Friends or Wordle word list. Wiktionary data of 2026-09-02.

Cite this page: “Words That Start with UM: 23 Words by Length.” Word.ws, https://word.ws/words/starting-with-um. Based on Wiktionary, CC BY-SA 4.0.