an announcement containing information about an event
"you didn't give me enough notice"
"an obituary notice"
"a notice of sale"
the act of noticing or paying attention
"he escaped the notice of the police"
a request for payment
"the notification stated the grace period and the penalties for defaulting"
advance notification (usually written) of the intention to withdraw from an arrangement of contract
"we received a notice to vacate the premises"
"he gave notice two months before he moved"
The act of observing; perception.
"The sudden flash of lightning was too brief for me to notice until I heard the thunder roll across the valley."
In plain English: A notice is a written message that tells people something important they need to know.
"The police officer wrote a ticket after seeing the speeding violation notice on my windshield."
Usage: Use "notice" as a noun to refer to something you have seen or become aware of, such as giving a sign of attention. Do not use it to mean the general ability to perceive, which requires words like "awareness" or "observation."
express recognition of the presence or existence of, or acquaintance with
"He never acknowledges his colleagues when they run into him in the hallway"
"She acknowledged his complement with a smile"
"it is important to acknowledge the work of others in one's own writing"
To remark upon; to mention.
"I noticed that you seemed upset earlier, so I'd like to ask what happened."
In plain English: To notice something means to see it or become aware of it.
"He did not notice the change in her expression."
Usage: Use "notice" as a verb when you observe or become aware of something happening around you, not when you intentionally speak about it. If you simply want to mention a topic in conversation, use the phrase "bring up" or "mention" instead.
The word notice entered English through Middle French and ultimately traces back to the Latin nōtitia. It originally referred to knowledge or information before taking on its modern sense of paying attention to something.