ha.

ha «hah», interjection.

1. an exclamation of surprise, suspicion, joy, triumph, or other emotion: »

Ha! I've caught you!” cried the giant to Jack.

2. the sound of a laugh or laughter: »

Ha! ha! ha!” laughed the boys.

Also, hah.

╂[imitative]

ha. or ha (no period),

hectare or hectares.

h.a.,

in this year (Latin, hoc anno).