Real Dictionary

haw
countable noun: Haws are the red berries produced by hawthorn trees in autumn.
exclamation: Writers sometimes use 'haw haw' to show that one of their characters is laughing, especially in a rather unpleasant or superior way.

Haw in American English
Hawaiian

haw in American English 1
the berry of the hawthorn
intransitive verb: to utter a sound representing a hesitation or pause in speech
noun: a sound or pause of hesitation

haw in American English 2
(used as) a command to a horse, ox, etc., meaning “ turn to the left”
to turn or make a turn to the left
to turn to the left
interjection: (used as a word of command to a horse or other draft animal, usually directing it to turn to the left)

haw in American English 3
(used to suggest) the sound a speaker often makes when hesitating briefly
noun: the fruit of the Old World hawthorn, Crataegus laevigata, or of other species of the same genus

haw in American English 4
nictitating membrane
noun: the thin, protective membrane at the inner corner of the lower eyelid of a horse, dog, etc.; nictitating membrane

haw in British English 1
noun: the round or oval fruit (a pome) of the hawthorn, usually red or yellow, containing one to five seeds

haw in British English 2
an inarticulate utterance, as of hesitation, embarrassment, etc; hem
verb: to make this sound

haw in British English 3
noun: a yard or close

haw in British English 4
noun: the nictitating membrane of a horse or other domestic animal

Haw. in American English
abbreviation: Hawaii