An action or statement in response to a stimulus or other event.
A transformation in which one or more substances is converted into another by combination or decomposition.
An icon or emoji appended to a posted message by a user to express their feeling about it.
Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant.
An action as opposed to a trait or thing.
A named command that performs a specific operation on an object.
A word that indicates an action, event, or state of being.
To perform any action that is normally expressed by a verb.
To use any word that is or was not a verb (especially a noun) as if it were a verb.