(1)伴侣，同伴(person，animal or thing who accompanies another as a friend or associate)[C]：one's～on the journey旅伴;one's travelling ～旅伴;His dog is his faithful～.他的狗是他忠实的伴侣。Wherever she goes，she takes a book to be her～. 她无论去哪儿，都带着一本书作伴。Are you alone or with a～? 你一个人还是有人相伴? Bad～s can lead a youth astray. 狐朋狗友能把青年人引入歧途。〖同〗associate;

(2)伙伴，同甘共苦者(person who shares in the work，pleasures，worries，misfortunes，etc of another)[C]：working/boon～s工作上/愉快的伙伴;～s in arms /misfortune战友/难友;〖同〗comrade，friend，mate;

(3)伙伴，志趣相投者(person with similar tastes，interests，etc)[C]：drinking～酒友;He is an ideal～/not much of a～for me他是我理想的伙伴/和我不大志同道合。He is a very amusing～.他是一个很叫人开心的伙伴。

(4)陪伴人(person，esp a woman，hired to assist and accompany another (esp sb old or ill)as a friend)[C]：a paid～花钱请的陪伴人;work/take a post as a paid～to an old woman受雇当/担任一个老太太的陪伴人;Her～does all her shopping.她的陪伴人替她购买所有的东西。〖同〗attendant，helper;

(5)相配(成对)的东西(one of a matching pair or set of things)[作attrib]：the～volume to sb's earlier book 某人前一本书的姐妹卷;Here's the glove for my left hand，but where's the～? 这是我左手的手套，另外那只在哪儿? The painting is a～to the one in the local art collection.这幅画是当地艺术收藏品中一件的姐妹篇。

(6)手册，指南(used in book titles)helpful handbook on a particular subject; reference book)[C]：The Motorist's/Gardener's/Gardening C～驾驶员手册/园艺指南/园艺指南;A C～to London 伦敦导游指南;〖同〗handbook;

→com′panionable adj 友善的，易(好)交往的;com′panionship n 交(友)情;

【辨异】companion与acquaintance、associate和friend的区别见ACQUAINTANCE。