notice
This word carries a sense of sudden realization or a shift in attention. It describes the moment a detail jumps out from the background and becomes conscious. It is more passive than "observe," which implies a deliberate, systematic study of a subject. In a professional or legal sense, it functions as a formal signal of intent. Providing notice is not just about informing someone, but about establishing a grace period or a boundary of time before an action takes effect, making it a critical term in employment and rental agreements.
Countable when referring to a physical sign or a formal warning (a notice on the wall). Uncountable when referring to the general state of paying attention (take notice).
Meanings
To become aware of something through the senses.
"I noticed a strange smell in the kitchen."
To pay attention to or observe something.
"He didn't even notice that I had left the room."
A written or spoken announcement or warning.
"The company gave him two weeks' notice before the layoff."
The act of observing or paying attention to something.
"She took notice of the way he spoke to the staff."
Phrasal Verbs
notice up
to make something visible or prominent
She noticed up the flyers on the community board.