1. (v. t.) See Reenforce.

2. (n.) See Reenforce.

accelerate add to affirm afford support aggravate attest augment authenticate back back up bear bear out bear up beef up blow up bolster bolster up brace brace up buoy up buttress carry case harden certify circumstantiate complicate concentrate condense confirm consolidate corroborate cradle crutch cushion deepen document double energize enhance enlarge exacerbate exaggerate finance fortify fund gird give support harden heat up heighten hold hold up hop up hot up increase intensify invigorate jazz up keep keep afloat keep up key up lend support magnify mainstay maintain make complex multiply nerve pillar pillow probate prop prop up prove ramify ratify recruit redouble refresh reinvigorate restrengthen rigidify screw up sharpen shore shore up shoulder soup up stay steel step up stiffen strengthen subsidize substantiate subvention subventionize supplement support sustain temper tense tighten toughen trice up triple underbrace undergird underlie underpin underset upbear uphold upkeep validate verify warrant whet