古往今来[kooukonrai] in all ages
古今[kokon] ancient and modern times
古今東西[kokontouzai] all times and places
古今無類[kokonmurui] best ever

今か今か[imakaimaka] eagerly waiting
今が今[imagaima] just now
今が今まで[imagaimamade] till just now
今しがた[imashigata] moment ago

悪友[akuyuu] undesirable friend
畏友[iyuu] one's esteemed friend
益友[ekiyuu] good friend
学友[gakuyuu] school friend
級友[kyuuyuu] classmate

旧友[kyuuyuu] crony
血友病[ketsuyuubyou] haemophilia
交友[kouyuu] friend
交友関係[kouyuukankei] one's relationships
校友[kouyuu] schoolmate

敵わない[kanawanai] no match for
怨敵[onteki] sworn enemy
外敵[gaiteki] foreign enemy
敵う[kanau] to come true (wish)
仇敵[kyuuteki] bitter enemy

敵討[katakiuchi] vengeance
敵同士[tekidoushi] mutual enemies
旧敵[kyuuteki] old enemy
強敵[kyouteki] formidable enemy
公敵[kouteki] public enemy

御誕生日おめでとうございます[otanjoubiomedetougozaimasu] Happy Birthday
また明日[mataashita] see you tomorrow
旭日[kyokujitsu] rising sun
旭日昇天[kyokujitsushouten] full of vigor and vitality (like the rising sun) (vigour)
或日[aruhi] one day (e.g. "one day while studying, ..")

一日の長[ichijitsunochou] superiority
一日一日[ichinichiichinichi] gradually
一日一夜[ichinichiichiya] all day and night
一日増しに[ichinichimashini] day by day
一日置き[ichinichioki] every other day

一昨[issaku] one previous
一昨晩[issakuban] night before last
一昨夜[issakuya] night before last
昨今[sakkon] nowadays
昨春[sakushun] last spring

昨年[sakunen] last year
昨晩[sakuban] last night
昨夜[sakuya] evening
一昨々日[sakiototsui] two days before yesterday