Abbreviation of concentration. / Abbreviation of concession.

(transitive) To hide something from view or from public knowledge, to try to keep something secret.

A marine gastropod of the family Strombidae which lives in its own spiral shell. / The shell of this sea animal. / A musical instrument made from a large spiral seashell, somewhat like a trumpet.

To refine the flavour and texture of chocolate by warming and grinding, either in a traditional concher, or between rollers.

That which affects one’s welfare or happiness. A matter of interest to someone. / The placement of interest or worry on a subject.

(transitive) To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to. / (transitive) To engage by feeling or sentiment; to interest.

(Internet slang) Used to express concern on the part of the speaker in response to something.

To join or link together, as though in a chain. / (transitive, computing) To join (text strings) together.

(biology) Joined together as if in a chain.

A camp where troops are assembled, prior to combat or transport.