The word(s) "gulf" appears 4 time(s) in 4 verse(s) in Quran in Muhammad Pickthal translation.

(1) Feel ye then secure that He will not cause a slope of the land to engulf you, or send a sand-storm upon you, and then ye will find that ye have no protector?

(2) And (be mindful of) the Day when He will say: Call those partners of Mine whom ye pretended. Then they will cry unto them, but they will not hear their prayer, and We shall set a gulf of doom between them.

(3) And verily we sent Noah (as Our messenger) unto his folk, and he continued with them for a thousand years save fifty years; and the flood engulfed them, for they were wrong-doers.

(4) And a gulf is set between them and that which they desire, as was done for people of their kind of old. Lo! they were in hopeless doubt.