Verb
come into sight; become visible or noticeable, typically without visible agent or apparent cause.
smoke appeared on the horizon
synonyms: become visible, come into view, come into sight, materialize, pop up; be revealed, emerge, surface, manifest itself, become apparent, become evident, come to light, arise, crop up
seem; give the impression of being.
she appeared not to know what was happening
synonyms: seem to be, look to be, give the impression of being, come across as being, strike som