Opposite of pIm.

The things being compared are normally the subject:

rap HIvje'vam HIvje'vetlh je
This cup and that cup are the same

When two things share a specific trait, one of the things is described as having that trait and then the other is said to be the same:

tIn HIvje'vam, rap HIvje'vetlh
That cup is as big as this cup

Literally this means "This cup is big, that cup is the same". 

ghun 'Iw HIq, rap boqrat chej
the bokrat liver is as warm as the bloodwine. (HQ 13.1)

Literally this means "The bloodwine is warm, the bokrat liver is the same".

'ey ro'qegh'Iwchab, rap qagh
the gagh is as delicious as the rokeg blood pie (HQ 13.1)

vaj ruS cher 'Iw, rap cha' ghot HoS rap cha' ghot vuD, chen yIn ruS
So the bond was sealed in blood of two equal in body and thought, the bond of life. (PB)

lenglIj lutebjaj lengwIjvaD bel rap, Sov [rap, ngoQ rap je] Danobpu'bogh
May your journey be filled with the same joy, wisdom, and purpose you have given mine. (Frasier)

GRAMMAR:

(HQ 13.1:8-9):  Using nIb carries a connotation of preciseness? Thus, it might be used when referring to something that can be measured, such as weight, but it is not likely to be used with less quantifiable qualities where the assertion of sameness is more a judgment? It is never improper to use rap even in cases where the quality is measurable. "Again, nIb implies precision" and is not likely to be used unless the quality being discussed is quantifiable or measurable. rap, on the other hand, may be used regardless of whether the quality is quantifiable.

CULTURE:

(KGT 5, "The Fiction of Klingon Conformity"):  All Klingons are not alike. To an outsider, Klingon society is often regarded as rather homogeneous, as if all Klingons behave and think in the same way. In fact, although there are a good many shared basic beliefs and understandings that hold Klingon society together and define what it means to be a Klingon, there is a great deal of variation. Thus, despite the veneration shown to warriors, not everyone is a warrior.

SEE ALSO:

nIb             be identical (v)
rur             resemble (v)

pIm             be different (v)
Sar             be varied, various (v)
ngang           vary, be varying (v)
Dop             be opposite, antithetical, contradictory (v)

mughmeH mu'mey noy:

"All animals are equal, but some animals are more equal than others." (George Orwell's "Animal Farm")

"All men may have been created equal; most certainly they are not all alike." (Theodosius Dobzhansky)