From Longman Dictionary of Contemporary Englishcross something ↔ off (also cross something off something) phrasal verbDEAL WITHto draw a line through one or more things on a list because you have dealt with them or they are not needed anymore Whenever I buy something, I cross it off the list. → cross→ See Verb table
Examples from the Corpus
cross off• It was a pity they would have to cross the car off.• They should cross it off the board.• Meeting these attainable short-term goals and progressively crossing them off the list can provide an important sense of achievement and reinforcement.• After she finished one, she crossed it off the list.• There are the collectors, crossing species off their life list as they come to them.• Value investors usually cross a company off their list after its price rises sharply.• As you accomplish tasks, cross them off your list.• At the slightest hint of sloth, cross them off your list. 