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

阿諛追従[ayutsuishou] excessive flattery
位記追贈[ikitsuisou] conferment of posthumous rank
犬追物[inuoumono] dog-hunting event of Kamakura period
幻を追う[maboroshiwoou] to pursue an illusion
後追い[atooi] following someone

後追い自殺[atooijisatsu] following someone's example, and committing suicide
公職追放[koushokutsuihou] purge of public officials
鹿追[shikaoi] hinged bamboo water cup or trough, which makes a percussive sound periodically as it tips over
戦没者追悼記念日[senbotsushatsuitoukinenbi] Memorial Day (US)
訴追[sotsui] legal action