to oppose or resist a plan, an idea or a change; to make the time or date of a meeting, etc. later than originally planned
push back (on sth)
to oppose or resist a plan, an idea or a change
push sth back
to make the time or date of a meeting, etc. later than originally planned
The start of the game was pushed back from 2 p. m. to 4 p. m.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición