…something that has been or can be added to an existing object or arrangement…
…go through the procedures to begin use of a computer, database, or system…
…taking place during or relating to the rehearsing of a play or the making of a film…
…(of a person’s mind or a discussion) be preoccupied or concerned with…
…denoting a line of verse in which a sentence is continued without a pause beyond the end of a line, couplet, or stanza…
…(of an extra part of a machine) able to be fastened on with a bolt or catch…
…(of a person) able to be contacted in order to provide a professional service if necessary, but not formally on duty…
…make the first row of a specified number of loops on the needle…
