An advisement providing more up-to-date information than currently known.
He gave me an update on the situation in New York.
A change in information, a modification of existing or known data.
I just made an update to the Wikipedia article on guerillas.
An additional piece of information. An addition to existing information.
I just made an update to my blog about my trip to Rome.
A modification of something to a more recent, up-to-date version; (in software) a minor upgrade.
I have a couple of updates to install on your laptop.
A version of something which is newer than other versions.
You should try the update: it rocks.
To bring (a thing) up to date.
I need to update my records to take account of the most recent transaction.
To bring (a person) up to date: to inform (a person) about recent developments.
Update me on what happened while I was away.