THESAURUS
Occur
appear, arise, be, be extant, be found, be in existence, be located, be met with, be present, be realized, be situated, be the case, be there, become manifest, befall, betide, breathe, chance, come, come about, come down, come off, come to, come to mind, come to pass, come true, crop up, dawn on, dawn upon one, develop, dwell in, eventuate, exist, fall, go off, grab one, hap, happen, happen to be, have being, have place, hit, hold, indwell, inhere, lie, live, manifest itself, materialize, obtain, occur to, offer itself, pass, pass off, present itself, prevail, remain, rise to mind, stand, strike, strike the mind, subsist, suggest itself, surface, take place, transpire, turn up
ROGET THESAURUS
Occur
Existence
VB
exist, be, have being, subsist, live, breathe, stand, obtain, be the case, occur, have place, prevail, find oneself, pass the time, vegetate, consist in, lie in, be comprised in, be contained in, be constituted by, come into existence, arise, come forth, become, bring into existence, abide, continue, endure, last, remain, stay.
Posteriority
VB
follow after, come after, go after, succeed, supervene, ensue, occur, step into the shoes of.
Eventuality
VB
happen, occur, take place, take effect, come, become of, come off, comeabout, come round, come into existence, come forth, come to pass, come on, pass, present itself, fall, fall out, turn out, run, be on foot, fall in, befall, betide, bechance, prove, eventuate, draw on, turn up, crop up, spring up, pop up, arise, show up, show its face, appear, come forth, cast up, supervene, survene, issue, arrive, ensue, arise, start, hold, take its course, pass off, meet with, experience, enjoy, encounter, undergo, suffer, pass through, go through, be subjected to, be exposed to, fall to the lot of, be one's chance, be one's fortune, be one's lot, find, endure.
Thought
VB
think, reflect, cogitate, excogitate, consider, deliberate, bestow thought upon, bestow consideration upon, speculate, contemplate, meditate, ponder, muse, dream, ruminate, brood over, con over, animadvert, study, bend the mind, apply the mind, digest, discuss, hammer at, weigh, perpend, realize, appreciate, fancy, trow, take into consideration, take counsel, commune with oneself, bethink oneself, collect one's thoughts, revolve in the mind, turn over in the mind, run over in the mind, chew the cud upon, sleep upon, take counsel of one's pillow, advise with one's pillow, rack one's brains, ransack one's brains, crack one's brains, beat one's brains, cudgel one's brains, set one's brain to work, set one's wits to work, harbor an idea, entertain an idea, cherish an idea, nurture an idea, take into one's head, bear in mind, reconsider, occur, present itself, suggest itself, come into one's head, get into one's head, strike one, flit across the view, come uppermost, run in one s head, enter the mind, pass in the mind, cross the mind, flash on the mind, flash across the mind, float in the mind, fasten itself on the mind, be uppermost in the mind, occupy the mind, have in one's mind, make an impression, sink into the mind, penetrate into the mind, engross the thoughts.