技術提携[gijutsuteikei] technical cooperation
業務提携[gyoumuteikei] business partnership
携える[tazusaeru] to carry in one's hand
携わる[tazusawaru] to engage in
携行[keikou] carrying

携帯[keitai] something carried (in the hand)
携帯電話[keitaidenwa] mobile telephone
戦略的提携[senryakutekiteikei] strategic partnership
提携[teikei] cooperation
必携[hikkei] handbook

行けない[ikenai] wrong
行る[yaru] to send
オリエント急行[orientokyuukou] Orient express
カ行[kagyou] classification for Japanese verb with the dictionary form ending in "ku"
ガ行[gagyou] classification for Japanese verb with the dictionary form ending in "gu"

サ行[sagyou] classification for Japanese verb with the dictionary form ending in "su"
ザ行[zagyou] classification for Japanese verb with the dictionary form ending in "zu"
スパイ行為[supaikoui] espionage
タ行[tagyou] classification for Japanese verb with the dictionary form ending in "tsu"
ダ行[dagyou] classification for Japanese verb with the dictionary form ending in "dzu"