com·pan·ion /kəmˈpænjən/
 朋友,陪伴,指南手冊,升降口(vt.)陪伴
 companion
 同伴
 Com·pan·ion n.
 1. One who accompanies or is in company with another for a longer or shorter period, either from choice or casually; one who is much in the company of, or is associated with, another or others; an associate; a comrade; a consort; a partner.
    The companions of his fall.   --Milton.
    The companion of fools shall smart for it.   --Prov. xiii. 20 (Rev. Ver.).
 Here are your sons again; and I must lose
 Two of the sweetest companions in the world.   --Shak.
    A companion is one with whom we share our bread; a messmate.   --Trench.
 2. A knight of the lowest rank in certain orders; as, a companion of the Bath.
 3. A fellow; -- in contempt. [Obs.]
 4.  Naut. (a) A skylight on an upper deck with frames and sashes of various shapes, to admit light to a cabin or lower deck. (b) A wooden hood or penthouse covering the companion way; a companion hatch.
 Companion hatch Naut., a wooden porch over the entrance or staircase of the cabin.
 Companion ladder Naut., the ladder by which officers ascend to, or descend from, the quarter-deck. --Totten.
 Companion way Naut., a staircase leading to the cabin.
 Knights companions, in certain honorary orders, the members of the lowest grades as distinguished from knights commanders, knights grand cross, and the like.
 Syn: -- Associate; comrade; mate; compeer; partner; ally; confederate; coadjutor; accomplice.
 Com·pan·ion, v. t.
 1. To be a companion to; to attend on; to accompany. [R.]
 2. To qualify as a companion; to make equal. [Obs.]
    Companion me with my mistress.   --Shak.
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 companion
      n 1: a person who is frequently in the company of another;
           "drinking companions"; "comrades in arms" [syn: comrade,
            fellow, familiar, associate]
      2: a traveler who accompanies you [syn: fellow traveler, fellow
         traveller]
      3: one paid to accompany or assist or live with another
      v : be a companion to somebody [syn: company, accompany, keep
          company]