| Act | (of e.g. volcanos) being in a state of action or potential action |
|---|---|
| Act | (grammar) expressing action rather than a state of being |
| Act | (grammar) active voice |
| Act | exerting influence or producing an effect |
| Act | (astronomy |
| Act | in a state of habitual or vigorous activity |
| Act | characterized by energetic bodily activity |
| Act | in operation |
| Act | taking part in an activity |
| Act | being in physical motion |
| Act | (military) engaged in or ready for military or naval operations |
| Act | chemical agent capable of activity |