1. consume
2. ingest, take in, take, have, consume
3. ingest, take in, take, have, eat in, eat out, eat up, feed
4. consume, ingest, take in, take, have, consume
5. eat up, use up, deplete, exhaust, run through, wipe out, spend, expend, drop, eat on
6. worry, vex, corrode
6. rust, damage