stand up - to be strong enough to use for a long time The new carpet should stand up for a long time. stand up (someone) - to fail to keep an appointment or date with someone (usually used for a date with a boyfriend or girlfriend) The boy stood the girl up on a date last Saturday and now she will not talk to him. stand up and be counted - to be willing to say what one thinks in public The union members thought that they should stand up and be counted before management took away their benefits. stand up for (someone or something) -.
