whistle

As a noun whistle

is a device designed to be placed in the mouth in order, or driven by steam or otherwise, to make a whistling sound.

As a verb whistle

is (ambitransitive) to make a shrill, high-pitched sound by forcing air through the mouth to produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As verbs the difference between referee and whistle

is that referee is while whistle is (ambitransitive) to make a shrill, high-pitched sound by forcing air through the mouth to produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips.

As a noun whistle is

a device designed to be placed in the mouth in order, or driven by steam or otherwise, to make a whistling sound.

As nouns the difference between whistle and whizz

is that whistle is a device designed to be placed in the mouth in order, or driven by steam or otherwise, to make a whistling sound while whizz is .

As verbs the difference between whistle and whizz

is that whistle is (ambitransitive) to make a shrill, high-pitched sound by forcing air through the mouth to produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips while whizz is .

As a noun whistle

is a device designed to be placed in the mouth in order, or driven by steam or otherwise, to make a whistling sound.

As a verb whistle

is to make a shrill, high-pitched sound by forcing air through the mouth. To produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips.

As a determiner his is

belonging to him.

As a pronoun his is

that which belongs to him; the possessive case of he, used without a following noun.

In lang=en terms the difference between whisper and whistle

is that whisper is to speak with suspicion or timorous caution; to converse in whispers, as in secret plotting while whistle is to send, signal, or call by a whistle.

As nouns the difference between whisper and whistle

is that whisper is the act of speaking in a quiet voice, especially, without vibration of the vocal cords while whistle is a device designed to be placed in the mouth in order, or driven by steam or otherwise, to make a whistling sound.

As verbs the difference between whisper and whistle

is that whisper is to speak softly, or under the breath, so as to be heard only by one near at hand; to utter words without sonant breath; to talk without that vibration in the larynx which gives sonorous, or vocal, sound while whistle is (ambitransitive) to make a shrill, high-pitched sound by forcing air through the mouth to produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips.