| noun | any of various long-tailed primates (excluding the prosimians) |
| noun | one who is playfully mischievous |
| verb | play around with or alter or falsify, usually secretively or dishonestly “Someone tampered with the documents on my desk” |
| verb | do random, unplanned work or activities or spend time idly “The old lady is usually mucking about in her little house” |
| monkey | verb | play around with or alter or falsify, usually secretively or dishonestly |
| rascally | adjective | playful in an appealingly bold way |
| monkey | noun | one who is playfully mischievous |
| putterer | noun | a person who putters about |
| potterer | noun | a person who putters about |
| tinker | noun | a person who enjoys fixing and experimenting with machines and their parts |
| tinkerer | noun | a person who enjoys fixing and experimenting with machines and their parts |