1. (verb) to be keen, ardent, avid, enthusiastic, anxious.
Matangareka rawa atu ia ki ngā mahi tākaro, he toa kē nei ia ki te kauhoe me te purei whutupaoro (TTR 2000:99). / He was a keen sportsman, and excelled at swimming and rugby.
2. (noun) enthusiasm, keenness, zeal.
Ahakoa te matangareka o tana āwhina i ngā mahi tango whenua a Airini, i whakakāhoretia e ia te wira (TTR 1994:18) . / Despite his enthusiasm in assisting to acquire Airini's land, he refused to accept the bequest.