- - About rhenium
- - Rhenium symbol
- - with reference to [abbr]
- - British army sappers [abbr.]
- - Related to, for short
- - Indian currency, abbr.
- - .... your fax
- - In relation to, for short
- - Business letter ref.
- - Bus. letter opener
- - Bus.-letter letters
- - ... Bator Mongolia
- - Regarding: Abbr.
- - Concerning: Abbr.
- - Atomic number 75
- - Concerning
- - In the matter of
- - Relative to, for short
- - Business letter abbr
- - Business letter letters
- - Musical note
- - Bring to ruin
- - two-letter prefix meaning again
- - theology study abbr
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