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

一統[ittou] lineage
王統[outou] royal line
系統[keitou] system
系統樹[keitouju] genealogical tree
系統神学[keitoushingaku] systematic theology

系統的[keitouteki] systematic
血統[kettou] lineage
植民地統治[shokuminchitouchi] colonial rule
信任統治制度[shinnintouchiseido] trusteeship system
人口動態統計[jinkoudoutaitoukei] demographic statistics

アナログ計算機[anarogukeisanki] analog computer
コンピューター援用設計[konpyuutaaenyousekkei] computer-aided design
圧力計[atsuryokukei] manometer
移行計画[ikoukeikaku] transition plan
一計[ikkei] plan

一般会計[ippankaikei] general accounting and finance
雨量計[uryoukei] rain gauge
温度計[ondokei] thermometer
家計[kakei] household economy
家計簿[kakeibo] household account book

印鑑[inkan] stamp
印鑑証明[inkanshoumei] certification of official registration of a seal
鑑みる[kangamiru] to heed
鑑札[kansatsu] licence
鑑識[kanshiki] judgement

鑑賞[kanshou] appreciation (e.g. of art)
鑑定[kantei] judgement
鑑別[kanbetsu] discrimination
龜鑑[kikan] pattern
図鑑[zukan] illustrated reference book