form or accumulate steadily; "Resistance to the manager's
plan built up quickly"; "Pressure is building up at the Indian-Pakistani border" Synonym(s):build up, work up, build, progress
develop; "we worked up an as of an appetite" Synonym(s):work up, get up
bolster or strengthen; "We worked up courage"; "build up confidence"; "ramp up security in the airports" Synonym(s):build up, work up, build, ramp up
come up with; "His colleagues worked out his interesting idea"; "We worked up an ad for our client" Synonym(s):work out, work up