ISの定義と意味 - メリアム・ウェブスター

IS Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition abbreviation (1) abbreviation (2) combining form 4 abbreviation (1) abbreviation (2) combining form Word History Rhymes Entries Near Related Articles Cite this Entry Citation Kids Definition Kids More from M-W Show more Show more Citation Kids More from M-W Save Word To save this word, you'll need to log in. Log In is 1 of 4 Synonyms of is present tense third-person singular of be dialectal present tense first-person and third-person singular of be dialectal present tense plural of be is 2 of 4 abbreviation (1) island; isle IS 3 of 4 abbreviation (2) information system is- 4 of 4 combining form variants or iso- 1 : equal : homogeneous : uniform is entropic 2 : isomeric iso cyanate 3 : for or from different individuals of the same species iso agglutinin Word History Etymology Middle English, from Old English; akin to Old High German ist is (from sīn to be), Latin est (from esse to be), Greek esti (from einai to be) Combining form Late Latin, from Greek, from isos equal Rhymes for is biz fizz his quiz riz tis whiz whizz wiz chandeliers See All Rhymes for is Browse Nearby Words Irwin is IS See all Nearby Words Articles Related to is Noah Webster's Spelling Wins and Fails Some of his biggest successes and defeats 'The Reason Is Because': Redundant But... If 'because' can mean 'that,' why not say "the reason is because"? The Redundant 'Is' Isn't Redundant That double 'is' is making speech smoother Cite this Entry Style MLA Chicago APA Merriam-Webster “Is.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/is. Accessed 1 May. 2026. Copy Citation Kids Definition is 1 of 2 present 3rd singular of be is- 2 of 2 combining form variants or iso- : equal : uniform iso bar Etymology Combining form derived from Greek isos "equal" More from Merriam-Webster on is Thesaurus: All synonyms and antonyms for is Nglish: Translation of is for Spanish Speakers Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day Beltane See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World Why do we 'bury the lede?' See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All