adjective
Definition: Relating to something that happens immediately or in a specific place, often without delay.
Example: They made a spot decision to change the plan right away.
intransitive verb
Definition: To become marked with small marks or dots.
Example: The dog began to spot with white fur as it got older.
noun
Definition: A small mark or area that is different in color or texture from the surrounding surface, or a specific location or place.
Example: She found a bright red spot on the wall that needed to be painted over.
transitive verb
Definition: To see or notice something, often something small or difficult to find.
Example: I can spot the difference between the two paintings easily.