Explanation:

- *Rivalry*: This word is correctly spelled and denotes competition or a struggle between entities.

- *Reign*: This word is correctly spelled and refers to the period during which a sovereign rules.

- *Rupee*: This word is correctly spelled and is the currency used in several countries, including India and Pakistan.

- Recieve: This word is incorrectly spelled. The correct spelling is *receive*, which means to be given or presented with something.

Option 4 - Recieve is the wrongly spelt word.