ROI
Initialism of Republic of Ireland.
Proper noun
- Initialism of Republic of Ireland.
Noun
- Initialism of return on investment.
- Initialism of region of interest, in digital images, microscopy: in 3-dim-specimen reconstructions by consecutive sectioning.
- Initialism of region of interest.
- Initialism of radius of influence.
- Initialism of release of information.
- Initialism of route of administration.