2. (modifier) hollow, sunken.
Tērā tētahi kōrero mō ētahi tamariki e takaro ana i tētahi wāhi e tata ana ki te ara o te tereina, ka kite aua tamariki i ētahi wāhi pokopokorua o te ara o te rerewē, ka houhou rātau ki reira takoto ai (TJ 6/9/1898:7). / There was a story about some children playing at a place near the railway track when those children found some sunken areas of the railway track, and they got into those and lay down.
4. (noun) ant, Formicidae spp.
See also pōpokorua