Yes, ha is a Scrabble word!

...and is worth 5 points in Scrabble, and 4 points in Words with Friends

ha

Noun

1. (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

What Scrabble words can I make with the letters in ha?

2 Letter Words

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1 Anagram of Ha

Words that can be created with an extra letter added to ha:

A:aahahaB:bahE:haeD:dahhadG:hagI:ahiH:hahJ:hajM:hamO:haoN:nahP:happahS:ahsashhasshaR:rahT:hatW:hawwhaY:hayyah