いい年をして[iitoshiwoshite] (in spite of) being old enough to know better
亥年[idoshi] year of the boar
一箇年[ikkanen] one year
一周年[isshuunen] one full year
一年以内に[ichineninaini] within a year

一年間[ichinenkan] (period of) one year
一年生[ichinensei] annual (plant)
一年草[ichinensou] annual (plant)
一年ぢゅう[ichinenjuu] all year round
一両年[ichiryounen] (a) year or two

ビット毎[bittogoto] bit-wise
丸毎[marugoto] in its entirety
事毎に[kotogotoni] in everything
日毎に[higotoni] daily

年毎に[toshigotoni] annually
半年毎に[hannengotoni] semiannually
毎に[gotoni] one by one
毎回[maikai] every time