1) Appear in thin air 2) Appear out of thin air 3) Become reality 4) Come about 5) Come into being 6) Fall out 7) Go on 8) Happen 9) Materialise 10) Occur 11) Pass 12) Pass off 13) Take place 14) To regard as matter Found on https://www.crosswordclues.com/clue/materialize
• (v. t.) To regard as matter; to consider or explain by the laws or principles which are appropriate to matter. • (v. t.) To invest with material characteristics; to make perceptible to the senses; hence, to present to the mind through the medium of material objects. • (v. t.) To make visable in, or as in, a material form; -- said o... Found on http://thinkexist.com/dictionary/meaning/materialize/
Ma·te'ri·al·ize transitive verb [ imperfect & past participle Materialized ; present participle & verbal noun Materializing .] [ Confer French matérialiser .] 1. To invest with material characteristics; to make percepti... Found on http://www.encyclo.co.uk/webster/M/32
materialize 1. To come into being or to appear suddenly; as if, out of nowhere. 2. To become a reality or to become a fact: 'The military unit found that their support did not materialize.' 3. To assume a physical form, or to cause a supposed ghost or spirit to assume a physical form. Found on http://www.wordinfo.info/words/index/info/view_unit/4294/