Append rhymes with:
depend, expend, impend, misspend, penned, spend, suspend, amend, apprehend, arend, ascend, attend, backend, befriend, bend, blend, commend, comprehend, condescend, contend, defend, depend, descend, distend, echemende, end, ende, expend, extend, fend, friend, impend, intend, landsend, lend, mend, mende, misspend, offend, overextend, penned, portend, pretend, recommend, relend, rende, reoffend, send, spend, suspend, tend, transcend, trend, unbend, wend, wende, yearend
Append sounds like:
abanto, abend, abiomed, abound, abounded, affiant, affined, affinity, afmed, aponte, appended, appoint, appointed, appointee, avant, avanti, avent, avnet