ha

Reading level: medium

Estimated CEFR level: B1 — Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

noun (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day

Attested early 14th century, of onomatopoeic origin. Compare Danish ha, Dutch ha, Finnish ha, Hungarian ha, Latin ha, Latvian ha, Swedish ha.

Ha! that's a joke, Torp. — The Works of Rudyard Kipling: One Volume Edition, Rudyard Kipling
“Has anything happened?” asked he. — The Crimson Fairy Book, Andrew Lang
"Ah ha!" said Psmith moodily. — Mike and Psmith, Wodehouse, P. G. (Pelham Grenville)

hour angle

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