一匹[ippiki] one animal (small)
数匹[suuhiki] several animals
馬匹[bahitsu] horses
匹敵[hitteki] comparing with
匹夫[hippu] (humble) man

匹夫の勇[hippunoyuu] rash courage
匹夫匹婦[hippuhippu] coarse men and women
匹婦[hippu] coarse woman
匹儔[hicchuu] equal

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