Definitions

1. noun

a piece of fabric (typically rectangular and flat) attached by one edge to a pole or rope and used as a symbol, emblem, or signal

“The flag of the United States was proudly waved at the parade.”

2. verb

to mark or indicate something, especially by attaching a flag to it

“The explorer flagged the new route on his map.”

3. verb

to signal or attract attention to something

“The flashing lights flagged the emergency vehicle.”

4. verb

to set a trap or bait for fish

“The fisherman flagged the stream with a lure.”

5. verb

to identify or mark something, especially in a database or computer system

“The database flagged the suspicious user.”

6. noun

a marker or indicator, especially in computing

“The flag in the code indicated a warning message.”