flush

UK: flʌʃ | US: flʌʃ

Definition
  1. v. 1. To turn red in the face, typically due to embarrassment or heat.

  2. v. 2. To cleanse or rinse with a sudden flow of liquid (e.g., flushing a toilet).

  3. adj. 1. Level or even with another surface (e.g., "flush with the wall").

  4. adj. 2. Having an abundance of something (e.g., "flush with cash").

Structure
fl <flow>ush <related to sudden movement>
Etymology

The word "flush" originates from Middle English flushen, meaning "to fly up suddenly" (as birds do), derived from Old French flus (a stream or flow). The core idea of sudden movement or flow persists in modern meanings:

  • The "blushing" sense (v.1) reflects a sudden rush of blood.
  • The "cleansing" sense (v.2) involves a rapid water flow.
  • The "level/abundant" senses (adj.) evolved from the idea of being "filled to the brim" (like liquid in a container).
Examples
  1. Her cheeks flushed when she received the compliment.

  2. Remember to flush the toilet after use.

  3. The shelf must be installed flush against the wall.

  4. After the deal, the company was flush with funds.

  5. The plumber fixed the pipes to ensure proper flushing.