1. nvs. Sharp, acute; sharpness; a sharp sign in music which raises the pitch of the following note a semitone. I laila ka ʻoi kepa lua o Hina-moe (For. 6:373), there the sharp double snapping [tusks] of Hina-moe. hō.ʻoi To sharpen. (PPN kohi.)
2. nvs. Best, superior, superb, main, prominent, exceeding; to exceed, excel; left-over, extra, remaining, above, odd. Maui nō ka ʻoi, Maui indeed is the best. [Note that nō in this sentence qualifies Maui. Nō ka ʻoi without a preceding noun is ungrammatical.] Mea e ʻoi aʻe, what is best, advantage. A ʻoi, emi mai, more or less. Hola ʻelua ā ʻoi, two o'clock or a little after. ʻOi aku ka ʻino, worse. ʻO ka lehua ka ʻoi kela o nā pua, lehua is the best of flowers. ʻOi loa, superlative, the very best. hō.ʻoi To excel; best. Hōʻoi i ka pili, to raise a bet. Nā pono kaulele hōʻoi (song), the gains over and above. [In divination, a priest may put two piles of pebbles under a tapa; then he counts the pebbles in each pile by twos; if none are left over in the would-be thief's pile this is called even (pahu); this means bad luck for the thief if his would-be victim is odd. If both piles are odd, or both piles are even, this, too, is indicative of failure. Having an odd number is good if the victim has an even number. (For. 6:73.)]
3. Same as ʻoiai 1, 2 but rare.