intransitive verb
Definition: To become marked or stained, often with a substance that spreads or smudges.
Example: The paint began to smear on the canvas as I tried to blend the colors.
noun
Definition: A mark or spot made by spreading something, often used to refer to a substance applied to a surface or a negative comment about someone.
Example: The artist created a colorful smear on the canvas.
transitive verb
Definition: To spread or apply a substance, often in a messy way, on a surface or to damage someone's reputation by making false statements about them.
Example: She decided to smear the paint on the canvas to create a unique texture.