Companion fare codes are unique discount codes that are issued annually to eligible credit cardholders. Definition of ha exclamation in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. (Definition of ha from the Cambridge Academic Content Dictionary © Cambridge University Press) Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for. Ha is used in writing to represent a noise that people make to show they are surprised, annoyed, or pleased about something. Ha! said James. Think I'd trust you? 2. See also ha ha. 3. ha is a written abbreviation for hectare. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers. 1. 2. 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. The hectare (/ ˈhɛktɛər, - tɑːr /; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100- metre sides (1 hm 2), that is, 10,000 square metres (10,000 m 2), and is primarily used in the measurement of land. HA definition: (used as an exclamation of surprise, interrogation, suspicion, triumph, etc.) See examples of ha used in a sentence. Browse and Find coins, comics, currency, art, luxury handbags, sports memorabilia, wine, historical items, books, real estate, and more at Heritage Auctions. The meaning of HA is —used especially to express surprise, joy, or triumph. How to use ha in a sentence.