This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To utter a series of chirps.

verb-intransitive. To make clucking or clicking sounds with the lips, as in urging on a horse.

v. To sound with chirps.

v. To make clucking sounds to.

n. A series of chirps.

n. A series of clucks or clicking sounds, such as those made to urge on a horse.

v. To make a series of chirps, clicks or clucks

n. A series of chirps, clicks or clucks

v. To quicken or animate by chirping; to cherup.

verb-intransitive. To chirp.

n. The act of chirping; a chirp.

To chirp.

n. A chirp.

To quicken, enliven, or animate, as by making a chirping sound; cherup: as, to chirrup one's horses.

To cheer or applaud (a public singer or the like, and for pay).

To produce or utter chirpingly.

To produce with compressed lips and suction a sharp explosive chirping sound by way of greeting or pleasing an infant or a cage-bird, or of coaxing and encouraging a dog or a horse, etc.

To converse or sing in a lively manner or in sprightly tones.

v. make high-pitched sounds

n. a series of chirps

"Esther works on maintaining her attention only in the present; there is always the now—an endlessly adjusting smell of the wind, the shining of the stars, the deep five-call chirrup chirrup of the cicadas in the park."

chirruped    chirruping    chirrups   

sound   

chirruped    chirruping   

cherup    chirp    chir   

cheep    chirp    cluck    chirruping    threnody    meow    whir    clunk    chittering    gurgle