加齢[karei] adding to one's years
学齢[gakurei] school age
月齢[getsurei] age of the moon
高齢[kourei] advanced (old) age
弱齢[jakurei] youth

寿齢[jurei] long life
樹齢[jurei] age of a tree
就学年齢[shuugakunenrei] school age
適齢期[tekireiki] marriageable age
年齢差[nenreisa] age difference