tagging
v.v. to attach a label or electronic marker to something so you can identify or track it later.
v. to attach a label to an object or to assign a digital identifier to a piece of data for classification or tracking purposes. Often used in the context of social media to link a person's profile to a post.
She is busy tagging all the new clothes with price labels.
Please remember to start tagging your photos with the event name so we can find them in the database later.
By tagging specific proteins with fluorescent markers, researchers can observe how molecules move through a living cell in real time under a microscope.
Transitive verb; requires a direct object. In digital contexts, often takes the preposition 'in' when referring to social media posts.
I tagged to him in the photoI tagged him in the photoTag is a transitive verb and does not require a preposition before the person being identified.