clean

A1 · Beginner

v. to make a place neat and organized.

v. to organize or tidy a space by removing clutter and arranging items properly.

“Please clean your room before your friends arrive for the party.”

“The staff worked quickly to clean the conference hall between sessions, ensuring every chair was aligned and all litter removed.”

A1 · Beginner

adj. free from dirt, marks, or bad smells.

adj. free from dirt, pollutants, or contamination; in a state of hygiene.

“Put on a clean shirt for the interview so you look professional.”

“The laboratory requires a clean environment to ensure that no outside bacteria interfere with the sensitive chemical cultures.”

B2 · Upper Intermediate

adj. not involved in anything illegal or dishonest.

adj. free from criminality, immorality, or prohibited substances; often used regarding a person's record or a sports drug test.

“The driver had a clean record with no accidents for ten years.”

“The athlete insisted he was clean, pointing to the results of three independent drug tests conducted during the off-season.”

B1 · Intermediate Science

adj. not causing much pollution or damage to nature.

adj. producing little or no pollution or hazardous waste; sustainable.

“Solar power is a clean energy source that helps protect the planet.”

“The government is subsidising the transition to clean technologies to meet its carbon reduction targets by the end of the decade.”

B2 · Upper Intermediate

adj. done in a smooth, simple, and perfect way.

adj. characterised by smooth lines, precise execution, or a lack of unnecessary complexity.

“The knife made a clean cut through the thick rope.”

“The architect is known for the clean lines of her buildings, avoiding the decorative clutter common in traditional designs.”

A2 · Elementary Countable noun

n. the act of making something clean.

n. an instance or process of cleaning something. Usually follows 'give something a...'.

“The kitchen needs a good clean after all that cooking.”

“The apartment was given a thorough clean before the new tenants moved in, leaving the floors polished and the windows sparkling.”

B2 · Upper Intermediate Informal

adv. completely or totally.

adv. entirely or completely; often used to emphasize that something was missed or forgotten.

“I clean forgot to call my mother on her birthday.”

“The thief managed to get clean away before the police could set up a perimeter around the building.”