I see a bird.

Meaning: This sentence tells us that the speaker perceives with their eyes a warm-blooded vertebrate animal that has feathers and wings.

Choice of Words: The word "I" refers to the speaker. "See" is a verb that means to perceive with the eyes. "A" is an indefinite article. "Bird" refers to a warm-blooded vertebrate animal that has feathers and wings.

Alternative Expressions

Related Expressions