Word.ws English Dictionary

ROI

/ˈɹɔɪ/

ROI is the initialism of return on investment.

ROI is the initialism of region of interest.

ROI is the initialism of radius of influence.

ROI is the initialism of release of information.

ROI is the initialism of route of administration.

ROI is the initialism of Republic of Ireland.

Meaning of return on investment

Noun

return on investment (countable and uncountable, plural returns on investment)

  1. A benefit, usually financial, gained by an investor from an investment.
    • Researchers believe automated coupling would save time and cost, but there are questions about the return on investment when it comes to retrofitting old wagons.2025 October 1, Chris Edwards, “Digital network”, in RAIL, number 1045, page 27
    Synonyms:
    ROI

Meaning of route of administration

Noun

route of administration (plural routes of administration)

  1. The path by which a drug, fluid, poison, or other substance is taken into the body.

Proper noun (1) capitalized: RoI

RoI

  1. (abbreviation, initialism) Initialism of Republic of Ireland.

Proper noun (2) capitalized: Roi

Roi

  1. Roi islet, Kwajalein atoll, Marshall Islands.

Forms of ROI

pluralROIs

Origin of ROI

From Marshallese Ruot.

Words formed from ROI

Phrases with ROI

Questions about ROI

What does ROI mean?
ROI means roi islet, Kwajalein atoll, Marshall Islands.
What is ROI the initialism of?
ROI is the initialism of return on investment.
What part of speech is ROI?
ROI is a proper noun.
How do you pronounce ROI?
ROI is pronounced /ˈɹɔɪ/.

Words near ROI in the dictionary

  1. rohu
  2. rohus
  3. Rohwer
  4. Rohwers
  5. rohypnol
  6. ROI
  7. Roi Et
  8. roi fainéant
  9. Roi-Namur
  10. roial
  11. roiall

Source and license

Adapted from Wiktionary: ROI (page history and authors); RoI (page history and authors); Roi (page history and authors); return on investment (page history and authors); route of administration (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “ROI.” Word.ws, https://word.ws/roi. Based on Wiktionary, CC BY-SA 4.0.