HAの定義と意味 - メリアム・ウェブスター

HA Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition interjection abbreviation (1) abbreviation (2) interjection 3 interjection abbreviation (1) abbreviation (2) Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical More from M-W Show more Show more Citation Kids Medical More from M-W Save Word To save this word, you'll need to log in. Log In ha 1 of 3 interjection ˈhä variants or hah Synonyms of ha — used especially to express surprise, joy, or triumph ha 2 of 3 abbreviation (1) hectare HA 3 of 3 abbreviation (2) 1 hemagglutinin Different circulating influenza A viruses are identified by referring to two signature proteins on their surfaces. One is hemagglutinin ( HA ), which has at least 15 known variants, or subtypes. — Jeffery K. Taubenberger et al. 2 hour angle Synonyms of ha Relevance Interjection hey See All Synonyms & Antonyms in Thesaurus Examples of ha in a Sentence Interjection ha ! I was right all along! Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Interjection Araghchi made the comments during a meeting with South Korea's special envoy Chung Byung- ha in Tehran, the semiofficial Iranian ISNA news agency reported. — Sean Nevin, NBC news , 24 Apr. 2026 Even though this exercise can be kind of a pain in the butt ( ha ), there are a few benefits to doing it. — Jenny McCoy, Outside , 17 Mar. 2026 Florid ha ’s shot above 42% from deep in each of its last five games. — Noah White, Miami Herald , 7 Mar. 2026 Good manners and c ha rm go a long way – ha! — Rachel Royster, Fort Worth Star-Telegram , 14 Feb. 2026 See All Example Sentences for ha Word History Etymology Interjection Middle English, from Old English First Known Use Interjection before the 12th century, in the meaning defined above Time Traveler The first known use of ha was before the 12th century See more words from the same century Phrases Containing ha ha - ha hoo - ha Rhymes for ha aah ah ahh aw awe bah blah bra caw claw craw daw See All Rhymes for ha Browse Nearby Words HA ha ha'penny See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Ha.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/ha. Accessed 1 May. 2026. Copy Citation Kids Definition ha interjection variants or hah ˈhä — used to express surprise, joy, or victory Medical Definition HA abbreviation hemagglutinin Seasonal strains … evade our immune systems after vaccination or previous infection by constantly changing the structure of their hemagglutinin ( HA ) surface protein. — Charles J. Russell , The New England Journal of Medicine More from Merriam-Webster on ha Nglish: Translation of ha for Spanish Speakers Britannica.com: Encyclopedia article about ha Last Updated: 24 Apr 2026 - Updated example sentences 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 Why do we 'bury the lede?' 'Za' and 9 Other Words to Help You Win at SCRABBLE Terroir, Oenophile, & Magnum: Ten Words About Wine 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