The word(s) "join" appears 48 time(s) in 46 verse(s) in Quran in Muhammad Pickthal translation.

(11) They believe in Allah and the Last Day, and enjoin right conduct and forbid indecency, and vie one with another in good works. These are of the righteous.

(12) Jubilant (are they) because of that which Allah hath bestowed upon them of His bounty, rejoicing for the sake of those who have not joined them but are left behind: That there shall no fear come upon them neither shall they grieve.

(13) Who hoard their wealth and enjoin avarice on others, and hide that which Allah hath bestowed upon them of His bounty. For disbelievers We prepare a shameful doom;

(14) When ye have performed the act of worship, remember Allah, standing, sitting and reclining. And when ye are in safety, observe proper worship. Worship at fixed times hath been enjoined on the believers.

(15) There is no good in much of their secret conferences save (in) him who enjoineth almsgiving and kindness and peace-making among the people. Whoso doeth that, seeking the good pleasure of Allah, We shall bestow on him a vast reward.

(16) And when they do some lewdness they say: We found our fathers doing it and Allah hath enjoined it on us. Say: Allah, verily, enjoineth not lewdness. Tell ye concerning Allah that which ye know not?

(17) Say: My Lord enjoineth justice. And set your faces upright (toward Him) at every place of worship and call upon Him, making religion pure for Him (only). As He brought you into being, so return ye (unto Him).

(18) Those who follow the messenger, the Prophet who can neither read nor write, whom they will find described in the Torah and the Gospel (which are) with them. He will enjoin on them that which is right and forbid them that which is wrong. He will make lawful for them all good things and prohibit for them only the foul; and he will relieve them of their burden and the fetters that they used to wear. Then those who believe in him, and honour him, and help him, and follow the light which is sent down with him: they are the successful.

(19) Keep to forgiveness (O Muhammad), and enjoin kindness, and turn away from the ignorant.

(20) Whoso on that day turneth his back to them, unless manoeuvring for battle or intent to join a company, he truly hath incurred wrath from Allah, and his habitation will be hell, a hapless journey's end.