UA

UA

1. (international standards) ISO 3166-1 alpha-2 country code for Ukraine since 1992.

   Synonym: UKR (alpha-3)

2. (international standards, obsolete) Former ISO 3166-1 alpha-2 country code for the Ukrainian Soviet Socialist Republic from 1974 to 1992.

   Synonym: UKR (alpha-3)

Despite being part of the Soviet Union, the Ukrainian SSR was granted a code on the first publication of ISO 3166 in 1974 due to being a member of the United Nations.

• AU

UA (not comparable)

1. Initialism of underage.

UA

1. Abbreviation of Uttaranchal, a state of India.

UA (countable and uncountable, plural UAs)

1. (military) Initialism of unauthorized absence.
2. (countable, UK, government) Initialism of unitary authority.
3. (countable, computing) Initialism of user agent.
   • 2011, Evi Nemeth et al., UNIX and Linux System Administration Handbook, Pearson Education, →ISBN, page 744:

     A “mail user agent” (MUA or UA) that lets users read and compose mail[.]

• AWOL
• French leave

• A. U., A.U., AU, Au, a.u., au

UA

1. au (astronomical unit)

UA

1. Abbreviation of unité astronomique.