Collect up
… put together in the same place.
Synonyms of collect up
verb: accumulate, compile, hoard, amass, roll up, pile up; related terms: run up, corral, collect, pull in, scrape up, scrape, scratch, come up, chunk, lump, bale, catch, fund, fund, salt away, stack away, stash away, store, hive away, lay in, put in.