The word(s) "sea" appears 85 time(s) in 79 verse(s) in Quran in Muhammad Pickthal translation.

(61) Allah it is Who hath made the sea of service unto you that the ships may run thereon by His command, and that ye may seek of His bounty, and that haply ye may be thankful;

(62) Hast thou seen him who maketh his desire his god, and Allah sendeth him astray purposely, and sealeth up his hearing and his heart, and setteth on his sight a covering? Then who will lead him after Allah (hath condemned him)? Will ye not then heed?

(63) Among them are some who give ear unto thee (Muhammad) till, when they go forth from thy presence they say unto those who have been given knowledge: What was that he said just now? Those are they whose hearts Allah hath sealed, and they follow their own lusts.

(64) And those who believe say: If only a surah were revealed! But when a decisive surah is revealed and war is mentioned therein, thou seest those in whose hearts is a disease looking at thee with the look of men fainting unto death. Therefor woe unto them!

(65) Or do those in whose hearts is a disease deem that Allah will not bring to light their (secret) hates?

(66) When the two Receivers receive (him), seated on the right hand and on the left,

(67) And those that glide with ease (upon the sea)

(68) So We seized him and his hosts and flung them in the sea, for he was reprobate.

(69) And the sea kept filled,

(70) He hath loosed the two seas. They meet.