Modifies a noun

• sleep: In the sleep cycles there are two main stages, non-REM sleep and REM sleep.

• claim: Guarantor's in rem claims against Commodore's vessels were premised on a credit agreement between Commodore and Guarantor.

• legere: I prefer an alternative derivation from Latin " rem legere " meaning the " right thing " that one has to choose.

• return: If y is an infinity, rem returns x.

• period: REM periods were found to be relatively long at this time.

Noun used with modifier

• ad: It is nihil ad rem that he never carried out the experiments themselves or faked the results.

• ante: Platonism ( also called transcendent realism and ante rem realism ): This is the view described in section 1.