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up on sth
01
with an extensive knowledge concerning current topics and events
What is the origin of the idiom "up on something" and when to use it?
The idiom "up on something" likely derives from the idea of gaining a higher or more complete understanding of a particular subject or topic. The use of "up" in this context implies an increase in knowledge or familiarity. While the precise origin of this idiom is not documented, it has been in use in the English language since 19th century. This expression is used to convey a person's familiarity, knowledge, or awareness of a specific subject, topic, or issue. It indicates that someone is well-informed, educated, or experienced in that area.
例
Before traveling to Japan, I decided to read up on the country's history and culture to make the most of my trip.
I need to catch the laundry up on the weekend.
I’d like to take you up on your offer to help me move.
The couple spent a lazy Sunday afternoon cuddled up on the couch.
He was known for not hesitating to pull employees up on breaches of protocol.
