for "half-Japanese" -- a person with
one parent who is Japanese and one non-Japanese. From
the English word "half". The term
is common and considered non-offensive by Japanese, though resisted by some haafus themselves, often in preference to "mix". When used
in English, often used
as an adjective rather
than a noun, i.e., "he is haafu" rather
than "he is a haafu".