As a noun:
* A tool: A brush is a tool with bristles, used for cleaning, painting, applying makeup, grooming hair, etc.
* Examples: "I need a new toothbrush." "The artist used a paintbrush to create the masterpiece."
* A quick touch: A brush can refer to a brief or light touch, often used for a fleeting or superficial encounter.
* Examples: "He gave her a brush on the cheek." "They had a brush with danger."
* A thicket: A brush can refer to dense, low-growing vegetation.
* Examples: "We hiked through the brush to reach the clearing." "The deer hid in the brush."
* A type of hair: A brush can refer to a type of hair, often short and thick.
* Example: "She has a thick brush of hair."
As a verb:
* To clean: To brush something is to use a brush to remove dirt or debris.
* Examples: "Brush your teeth before bed." "Brush the dust off the furniture."
* To touch briefly: To brush against someone or something is to touch them lightly and quickly.
* Examples: "I brushed against him in the crowd." "The cat brushed past my leg."
* To paint: To brush paint is to apply paint using a brush.
* Example: "She brushed the wall with a light coat of paint."
Other meanings:
* Brush up on: To improve one's knowledge of a subject.
* Example: "I need to brush up on my Spanish before my trip."
* Brush aside: To ignore or dismiss something.
* Example: "She brushed aside his concerns."
The meaning of "brush" will be clear from the context of the sentence or conversation.