l]
| 1. | possessed, experienced, performed, etc., by each of two or more with respect to the other; reciprocal: to have mutual respect. |
| 2. | having the same relation each toward the other: to be mutual enemies. |
| 3. | of or pertaining to each of two or more; held in common; shared: mutual interests. |
| 4. | having or pertaining to a form of corporate organization in which there are no stockholders, and profits, losses, expenses, etc., are shared by members in proportion to the business each transacts with the company: a mutual company. |
| 5. | Informal. a mutual fund. |

"The essence of its meaning is that it involves the relation x is or does to y as y to x; & not the relation, x is or does to z as y to z" [Fowler]Mutual Admiration Society (1851) seems to have been coined by Thoreau.