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The meaning of HA is —used especially to express surprise, joy, or triumph. How to use ha in a sentence.

HA definition: (used as an exclamation of surprise, interrogation, suspicion, triumph, etc.) See examples of ha used in a sentence.

(Definition of ha from the Cambridge Academic Content Dictionary © Cambridge University Press)

4 days ago · A single ha! (virtually always with an exclamation mark) may be used to express mild amusement or merely a polite reaction to something intended to be funny. In modern and informal …

ha. ha. is a written abbreviation for hectare. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers

Factsheet What does the word ha mean? There are six meanings listed in OED's entry for the word ha. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Ha definition: Used to express surprise, wonder, triumph, puzzlement, or pique.

ha (hɑː) or hah interj 1. an exclamation expressing derision, triumph, surprise, etc, according to the intonation of the speaker 2. (reiterated) a representation of the sound of laughter

Hyaluronic acid (/ ˌhaɪ.əljʊəˈrɒnɪk /; [1][2] abbreviated HA; conjugate base hyaluronate), also called hyaluronan, is an anionic, nonsulfated glycosaminoglycan distributed widely throughout connective, …