御客さん[okyakusan] guest
御客様[okyakusama] guest
押掛け客[oshikakekyaku] uninvited guest
佳客[kakyaku] good visitor
花客[kakaku] flower-viewing guest

華客[kakaku] special guests
雅客[gakaku] man of letters
看客[kankaku] spectators
観客[kankyaku] audience
観光客[kankoukyaku] tourist

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