THESAURUS
come upon
alight upon, appear unexpectedly, arrive at, arrive upon, be unexpected, blunder upon, bob up, bump into, chance upon, come across, come among, come at, come on, come unawares, come up against, confront, creep up on, discover serendipitously, encounter, fall across, fall among, fall foul of, fall in with, fall upon, flash upon one, get at, happen upon, hit upon, light upon, meet, meet head-on, meet up with, meet with, pitch upon, pop up, pounce upon, reach, run across, run into, run smack into, run up against, run upon, strike upon, stumble on, stumble upon, tumble on, turn up
ROGET THESAURUS
come upon
Acquisition
VB
acquire, get, gain, win, earn, obtain, procure, gather, collect, pick, pickup, glean, find,
come upon, pitch upon, light upon, scrape up, scrape together, get in, reap and carry, net, bag, sack, bring home, secure, derive, draw, get in the harvest, profit, make profit, draw profit, turn a quick profit, turn to profit, turn to account, make capital out of, make money by, obtain a return, reap the fruits of, reap an advantage, gain an advantage, turn a penny, turn an honest penny, make the pot boil, bring grist to the mill, make money, coin money, raise money, raise funds, raise the wind, fill one's pocket, treasure up, realize, clear, produce, take, get back, recover, regain, retrieve, revendicate, replevy, redeem, come by one's own, come by, come in for, receive, inherit, step into a fortune, step into the shoes of, succeed to, get hold of, get between one's finger and thumb, get into one's hand, get at, take possession, come into possession, enter into possession, be profitable, pay, answer, accrue.
Arrival
VB
arrive, get to, come to, come, reach, attain, come up with, come up to, overtake, make, fetch, complete, join, rejoin, light, alight, dismount, land, go ashore, debark, disembark, put in, put into, visit, cast anchor, pitch one's tent, sit down, get to one's journey's end, make the land, be in at the death, come back, get back, come home, get home, return, come in, make one's appearance, drop in, detrain, deplane, outspan, de-orbit, come to hand, come at, come across, hit,
come upon, light upon, pop upon, bounce upon, plump upon, burst upon, pitch upon, meet, encounter, rencounter, come in contact.
Inexpectation
VB
not expect, be taken by surprise, start, miscalculate, not bargain for,
come upon, fall upon, be unexpected, come unawares, turn up, pop, drop from the clouds,
come upon one, burst upon one, flash upon one, bounce upon one, steal upon one, creep upon one, come like a thunder clap, burst like a thunderclap, thunder bolt, take by surprise, catch by surprise, catch unawares, catch napping, yach, pounce upon, spring a mine upon, surprise, startle, take aback, electrify, stun, stagger, take away one's breath, throw off one's guard, astonish, dumbfound.