Synonyms for renew

verb

1. To make new or as if new

   restore, refresh, revive, rejuvenate, renovate, reawaken, regenerate, reestablish, rehabilitate, gentrify, reinvigorate, replace, rebuild, reconstitute, remake, refinish, refurbish, redo, revitalize, recharge, invigorate, exhilarate, resuscitate, reconceive, recondition, overhaul, recodify, replenish, go over, cool, brace, freshen, stimulate, recreate, remodel, revamp, redesign, modernize, give new life to, recover, reintegrate, make a new beginning, bring up to date, do over, make like new, bring up to code, rehab*; see also revive 1.

2. To repeat

   resume, reiterate, recommence, take up again; see repeat 1, resume.

3. To replace

   replenish, restock, refill; see replace 1, replenish.

renew, the broadest term here, implies making new, fresh, or strong again by replacing or revitalizing what is old, worn, exhausted, etc. to renew a stock of goods, with renewed faith; to renovate is to clean up, replace or repair worn parts, etc. so as to bring back to good condition to renovate an old apartment; to restore is to bring back to an original or unimpaired condition after exhaustion, illness, dilapidation, etc. to restore paintings damaged in the flood; refresh implies a restoring of depleted strength, vigor, etc. by furnishing something needed a refreshing sleep; rejuvenate implies a restoring of youthful appearance, vigor, etc. I felt rejuvenated after the heart surgery