| cop(noun, guard, agent, spy, champion) |
| guardian(noun, guard, attendant, protector, keeper) |
| hound |
| Sherlock Holmes(noun, expression, agent, spy, police) |
| agent(noun, spy, informer, reporter, gumshoe) |
| alarm clock(noun, expression, guide, companion, assistant) |
| analyst(noun, agent, spy, informer, reporter) |
| angel(noun, guard, safeguard, champion, sponsor) |
| attendant(noun, person, guide, guard, safeguard) |
| baby-sitter(noun, guard, safeguard, champion, sponsor) |
| bloodhound(noun, agent, spy, police, informer) |
| bull(noun, agent, spy, informer, reporter) |
| cerberus(noun, guard, safeguard, champion, sponsor) |
| champion(noun, guard, safeguard, sponsor, angel) |
| chaperon(noun, person, guide, guard, safeguard) |
| chaperone(noun, guard, safeguard, champion, sponsor) |
| companion(noun, guide, assistant, attendant, nurse) |
| conservator(noun, guard, safeguard, champion, sponsor) |
| constable(noun, agent, spy, informer, reporter) |
| curator(noun, guard, safeguard, champion, sponsor) |