gapes

(noun) an expression of openmouthed astonishment. Synonyms: gape.

(noun) a stare of amazement (usually with the mouth open). Synonyms: gape.

(verb) look with amazement; look stupidly. Synonyms: goggle, gape, gawp, gawk.

(verb) be wide open. Synonyms: gape, yawn, yaw. Example: "The deep gaping canyon."