رسم rasm A (from رسم rasama, Heb. He marked or wrote) s. f. 1. Custom. 2. Law. 3. Model, plan. 4. A game among children, the laws of which are, that one puts a question to another, who is obliged to reply in words which do not contain either of the three letters س ر or م which compose the word رسم. If one of these should be found in his answer, he is condemned, by way of penalty, to imitate the voice of any animal which may be directed by the questioner.