being and remaining ready and available for use; "waiting cars and limousines lined the curb"; "found her mother waiting for them"; "an impressive array of food ready and waiting for the guests"; "military forces ready and waiting"
work together on a common enterprise of project; "The soprano and the pianist did not get together very well"; "We joined forces with another research group"
cooperate as a traitor; "he collaborated with the Nazis when they occupied Paris"
come into sight or view; "He suddenly appeared at the wedding"; "A new star appeared on the horizon"
come into being or existence, or appear on the scene; "Then the computer came along and changed our lives"; "Homo sapiens appeared millions of years ago"
be issued or published; "Did your latest book appear yet?"; "The new Woody Allen film hasn't come out yet"
appear as a character on stage or appear in a play, etc.; "Gielgud appears briefly in this movie"; "She appeared in `Hamlet' on the London stage"
seem to be true, probable, or apparent; "It seems that he is very gifted"; "It appears that the weather in California is very bad"
present oneself formally, as before a (judicial) authority; "He had to appear in court last month"; "She appeared on several charges of theft"