The word(s) "suffice" appears 21 time(s) in 21 verse(s) in Quran in Muhammad Pickthal translation.

(11) Lo! My (faithful) bondmen - over them thou hast no power, and thy Lord sufficeth as (their) guardian.

(12) Say: Allah sufficeth for a witness between me and you. Lo! He is Knower, Seer of His slaves.

(13) And We set a just balance for the Day of Resurrection so that no soul is wronged in aught. Though it be of the weight of a grain of mustard seed, We bring it. And We suffice for reckoners.

(14) Even so have We appointed unto every prophet an opponent from among the guilty; but Allah sufficeth for a Guide and Helper.

(15) And trust thou in the Living One Who dieth not, and hymn His praise. He sufficeth as the Knower of His bondmen's sins,

(16) Say (unto them, O Muhammad): Allah sufficeth for witness between me and you. He knoweth whatsoever is in the heavens and the earth. And those who believe in vanity and disbelieve in Allah, they it is who are the losers.

(17) We shall show them Our portents on the horizons and within themselves until it will be manifest unto them that it is the Truth. Doth not thy Lord suffice, since He is Witness over all things?

(18) Or say they: He hath invented it? Say (O Muhammad): If I have invented it, still ye have no power to support me against Allah. He is Best Aware of what ye say among yourselves concerning it. He sufficeth for a witness between me and you. And He is the Forgiving, the Merciful.

(19) He it is Who hath sent His messenger with the guidance and the religion of truth, that He may cause it to prevail over all religion. And Allah sufficeth as a Witness.

(20) Hast thou not observed those who were forbidden conspiracy and afterward returned to that which they had been forbidden, and (now) conspire together for crime and wrongdoing and disobedience toward the messenger? And when they come unto thee they greet thee with a greeting wherewith Allah greeteth thee not, and say within themselves: Why should Allah punish us for what we say? Hell will suffice them; they will feel the heat thereof - a hapless journey's end!