To concentrate one’s attention.
To adjust (a lens, an optical instrument) in order to position an image with respect to the focal plane.
To transfer the input focus to (a visual element), so that it receives subsequent input.
To direct attention, effort, or energy to a particular audience or task.
To concentrate during a task.
To cause (rays of light, etc) to converge at a single point.
To aggregate figures of accounts.
The fact of the convergence of light on the photographic medium.
A point of a conic at which rays reflected from a curve or surface converge.
The most important word or phrase in a sentence or passage, or the one that imparts information.
The quality of the convergence of light on the photographic medium.
A point at which reflected or refracted rays of light converge.
The exact point of where an earthquake occurs, in three dimensions (underneath the epicentre).
The status of being the currently active element in a user interface, often indicated by a visual highlight.
Concentration of attention.
An object used in casting a magic spell.
To be or become aware or cognizant.
To perceive the truth or factuality of; to be certain of or that.
To experience.
To understand or have a grasp of through experience or study.
To be able to play or perform (a song or other piece of music).
To be acquainted or familiar with; to have encountered.
To be aware of; to be cognizant of.
To recognize as the same (as someone or something previously encountered) after an absence or change.
To have knowledge; to have information, be informed.
Knowledge; the state of knowing.
Knowledge; the state of knowing; now confined to the fixed phrase ‘in the know’