Basin
Part of speech: noun
Definition: A bowl for washing, often affixed to a wall. An area of water that drains into a river. A rock formation scooped out by water erosion.
Lavatory
Part of speech: noun
Definition: A bathroom; a washroom.A toilet.
Basin as a noun is a bowl for washing, often affixed to a wall. while Lavatory as a noun is a bathroom; a washroom.
Part of speech: noun
Definition: A bowl for washing, often affixed to a wall. An area of water that drains into a river. A rock formation scooped out by water erosion.
Part of speech: noun
Definition: A bathroom; a washroom.A toilet.
We hope you now know whether to use Basin or Lavatory in your sentence.