Jr.

• (UK): Jr, Jnr

Jr.

1. Abbreviation of junior. A title used after a son's name when his father has the same name.

"Jr." is typically placed after an optional comma following the surname, as seen in "John Smith, Jr." or "John Smith Jr." Jr., Sr., and other suffixes are considered additions to names rather than integral parts of the surname or given name. In abbreviated formats with only the surname or the given name initial and surname, any suffix is typically added after the surname (e.g., "Smith Jr." or "J. Smith Jr."). In name lists where the surname precedes the given name, the Jr. is written alongside the surname, as in "Smith Jr., John." It's worth noting that the use of Jr. and Sr. seems less common for females. Also see Wikipedia style guide on "Generational and regnal suffixes".

• jnr (British form)
• the Younger
• Son

• II (two)
• the Second

• Sr. (senior)

• Dr.
• Sr.
• Mr.

• RJ, /rj

Jr. m (uncountable)

1. (Peru) Abbreviation of jirón (lane)