黄道十二宮[koudoujuunikyuu] twelve signs of the zodiac
丸十[marujuu] cross in a circle
五十音[gojuuon] the Japanese syllabary
五十音順[gojuuonjun] the syllabary order
五十三次[gojuusantsugi] the 53 Toukaidou stages

五十年祭[gojuunensai] jubilee
五十歩百歩[gojuppohyappo] six of one and a half dozen of the other
五十路[isoji] age fifty
三十戸[sanjikko] thirty houses
三十三所[sanjuusansho] any of a number of sets of thirty-three holy places enshrining Avalokitesvara (esp. those comprising a popular pilgrimage in the Kinki region)

まっ四角[masshikaku] square
一天四海[ittenshikai] the world
下四半期[shimoshihanki] last quarter (of the year)
弦楽四重奏曲[gengakushijuusoukyoku] string quartet
再三再四[saisansaishi] repeatedly

三寒四温[sankanshion] alternation of three cold and four warm days
四つ[yottsu] four
四つんばい[yotsunbai] (crawl) on all fours
四つ角[yotsukado] four corners
四つ足[yotsuashi] four-footed (animal)

アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
パリティ変換[paritihenkan] parity transformation (physics)
異変[ihen] unusual phenomenon
移り変り[utsurikawari] change (e.g. season)
一定不変[itteifuhen] invariable

一風変った[ippuukawatta] eccentric
一変[ippen] complete change
黄変米[ouhenmai] spoiled rice
化学変化[kagakuhenka] chemical change
かな漢字変換[kanakanjihenkan] kana-kanji conversion (on a computer, etc.)

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

悪政[akusei] misgovernment
圧政[assei] despotic administration
為政家[iseika] politician
為政者[iseisha] statesman
院政[insei] government by cloistered emperors

王政[ousei] monarchy
仮政府[kariseifu] provisional government
家政[kasei] household economy
家政婦[kaseifu] housekeeper
苛政[kasei] tyranny

明白[meihaku] obvious
明白[akarasama] plain
明かん[akan] useless
また明日[mataashita] see you tomorrow
意識不明[ishikifumei] unconscious

印鑑証明[inkanshoumei] certification of official registration of a seal
飲み明かす[nomiakasu] to drink the night away
解明[kaimei] clarification
明ける[akeru] to open (a door, etc.)
明け放す[akehanasu] to open wide (doors, windows, etc.)

共産党政治局[kyousantouseijikyoku] Politburo
共和政治[kyouwaseiji] republican government
恐怖政治[kyoufuseiji] politics of fear
金権政治[kinkenseiji] money politics (i.e corruption of politics by money)
根治[konji] complete (radical) cure

三頭政治[santouseiji] triumvirate
治まる[osamaru] to be at peace
治める[osameru] to govern
治安[chian] public order
治安部隊[chianbutai] security force