1. (modifier) somewhat, a little, quite, fairly, a bit, sort of - stands before the word it qualifies and has the effect of lessening the force of the meaning of the base it modifies.
Kua āhua pukuriri ia. / He is somewhat angry.
(Te Pihinga Textbook (Ed. 2): 42-43;)
2. (modifier) about, approximately - when used before numerals.
Ko te nui o ngā akonga kei te āhua tekau mano nei (HM 3/1990:3). / The number of students is about ten thousand.