1. friendship: palship; companionship; fellowship; friendliness;
accord(尤指国与国之间的)谅解, 协议, affection(喜爱), alliance(结盟),amity(友好关系), brotherhood(手足之情), closeness(亲近), coalition(同盟), comradeship(同志间的友谊), concord(和睦), federation(联邦),fraternity(兄弟会,联谊会), intimacy(亲密), kindliness(亲切,友好的行为), league(同盟), rapport(融洽, sisterhood(姐妹之情)
2.language: tongue, linguistic communication
argot(行话,黑话), cant(隐语,伪善的话), choice of words(措辞), communication(交流), dialect(方言), diction(措词), expression(表达), formulation(明确的表达), grammar(语法), idiom(成语,习语), intercourse(交往), jargon(行话), phrase(词组,短语), rhetoric(雄辩言辞;虚夸的言辞), slang(俚语), speech(演讲), talk, terminology(专业术语),vocabulary,words
3.travel: go, move, journey, trip, locomote, peregrinate(旅行),
tour, voyage
4.earthquake:temblor, seism, cataclysm, earthshock
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