v. 25B6; verb
the forecast investment boom did not materialize : HAPPEN, occur, come about, take place, come into being, transpire; informal come off; formal eventuate; poetic/literary come to pass.
Harry materialized at the door : APPEAR, turn up, arrive, make/put in an appearance, present oneself/itself, emerge, surface, reveal oneself/itself, show one's face, pop up; informal show up, fetch up, pitch up.