Place (one geometric figure) upon another so that their perimeters coincide.

Roget 37: add, annex, affix, superadd^†, subjoin, superpose; clap on, saddle on; tack to, append, tag; ingraft^†; saddle with; sprinkle; introduce etc. (interpose) 228; insert etc. 300.    become added, accrue; advene^†, supervene.    reinforce, reenforce, restrengthen^†; swell the ranks of; augment etc. 35.    ... show more

Place on top of.

synonyms: lay over, superimpose.

Roget 223: cover; superpose, superimpose; overlay, overspread; wrap etc. 225; encase, incase^†; face, case, veneer, pave, paper; tip, cap, bind; bulkhead, bulkhead in; clapboard [U.S.].    coat, paint, varnish, pay, incrust, stucco, dab, plaster, tar; wash; besmear, bedaub; anoint, do over; gild, plate, japan, lacquer, lacker^†, enamel, whitewash; parget^†; lay it on thick.    overlie, overarch^†; endome^†; conceal etc. 528.    [of aluminum] anodize.    [of steel] galvanize.    ... show more