Root ر ق ب(r q b) has 13 unique word forms and appears 24 times in the Quran.

English gloss Guard, Greed, Fear of God, Neck, Slave

Word Translation Occurrences
رَقَبَةٖ (of) a believing slave, (of) a slave, (of) a believing slave, (of) a slave 8
ٱلرِّقَابِ freeing the necks (slaves), freeing the necks (slaves), the necks, the (freeing of) the necks, the (freeing of) the necks, the necks 6
فَٱرۡتَقِبۡ So watch, So watch, Then watch, Then watch 4
رَقِيبٌ (is) an observer, (is) an observer 2
رَقِيبٞ a watcher, a watcher 2
رَقِيبٗا Ever-Watchful, Ever-Watchful 2
رَّقِيبٗا an Observer, an Observer 2
فَٱرۡتَقِبۡهُمۡ so watch them, so watch them 2
ٱلرَّقِيبَ the Watcher, the Watcher 2
مُّرۡتَقِبُونَ (too are) watching, (too are) watching 2
وَٱرۡتَقِبُوٓاْ And watch, And watch 2
يَتَرَقَّبُ (and) was vigilant, (and) was vigilant 2
يَتَرَقَّبُۖ (and) vigilant, (and) vigilant 2
يَرۡقُبُواْ they do not regard (the ties), they do not regard (the ties) 2
تَرۡقُبۡ you respect, you respect 2
يَرۡقُبُونَ they respect (the ties), they respect (the ties) 2
رَقَبَةٍ a neck, a neck 2
رَقَبَةٖۖ a slave, a slave 2