2. (noun) humidity.
Ko tā te pīpīwai he tohu i te tūpono tōtā o te wairehu, me te heke o te ua (RP 2009:325). / Humidity is an indicator of the likelihood of the water vapour condensing, resulting in rain (RP 2009:325).
3. (noun) sandstone.
Ko Tūāhōanga tētahi o ngā kōwhatu, ēnei kōwhatu he wawatai, he papanui, he kauheke, he matanui, he pīpīwai, he rekepounamu tētahi o ngā ingoa o te pīpīwai (JPS 1927:291). / Tūāhōanga (sandstone) is one of the rocks and these rocks are wawatai, papanui, kauheke, matanui, pīpīwai and rekepounamu, another of the names for sandstone.