2. (noun) screw.
Synonyms: wairori, whakawiri, takawiri, takawiriwiri
3. (noun) tuning key (of a guitar, etc.).
Mā te huri i ngā kōwiri e whakatikahia ai te tangi o ngā aho (RTP 2015:61). / By turning the tuning keys the pitch of the strings is corrected.