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

豊か[yutaka] abundant
豊漁[houryou] good catch
豊作[housaku] abundant harvest
豊熟[houjuku] abundant harvest
豊年[hounen] fruitful year

豊富[houfu] abundance
豊満[houman] stout
豊沃[houyoku] fertility
豊潤[houjun] rich and prosperous
豊麗[hourei] rich (design)