From Longman Dictionary of Contemporary Englishput something back phrasal verb1 put somebody/something ↔ back to put people or things in the place or situation they were in before She put the saucepan back on the stove. Our win today put us back into third place in the league.2 put something ↔ backPOSTPONE/DO LATER to arrange for an event to start at a later time or date SYN postponeput something ↔ back to The meeting has been put back to next Thursday.3 put something ↔ backDELAY to delay a process or activity by a number of weeks, months etc This fire could put back the opening date by several weeks.4 to make someone or something have something that they used to have before The win put a smile back on his face.5 put a clock/watch backTMC British English to make a clock or watch show an earlier time SYN set back American English → put the clock back at clock1(3) → put→ See Verb tableFrom Longman Business Dictionaryput something → back phrasal verb [transitive]1to arrange for an event to start at a later time or dateThis afternoon’s meeting has been put back to next Thursday.2to cause something to be delayedThe strike could put back the completion date by several weeks. → put→ See Verb table
