ha

ha ¹ also hah  (hä)

interj.

Used to express surprise, wonder, triumph, puzzlement, or pique.

---

ha ²

abbr.

1. hectare

2. Latin hoc anno (this year)

3. hour angle

---

ha ¹ or hah

interj

an exclamation expressing triumph, surprise, or scorn

---

ha ² hectare

---

Ha Chem hahnium

Thesaurus

Noun

1.

HA - (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 hour angle astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole angular distance - the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars"