| Main Entry: | |
| Part of Speech: | noun |
| Definition: | sworn friend |
| Synonyms: | bro, brother, brother german, close friend |
| Main Entry: | bosom friend |
| Part of Speech: | noun |
| Definition: | intimate friend |
| Synonyms: | best friend, bosom buddy, close friend, companion, confidant, dear friend, pal, soul mate |
| Main Entry: | birds of a feather |
| Part of Speech: | noun |
| Definition: | matching pair |
| Synonyms: | Bobbsey twins, close friends, compadres, comrades, couple, friends, matching set, pair, peas in a pod, two minds thinking as one, two of a kind |