TA or ta may refer to:
Taxonomy (from Ancient Greek: τάξις taxis, "arrangement", and -νομία -nomia, "method") is the science of defining groups of biological organisms on the basis of shared characteristics and giving names to those groups.
Taiwan (/ˌtaɪˈwɑːn/), officially the Republic of China (ROC), is a state in East Asia. Neighbours include China (officially the People's Republic of China, PRC) to the west, Japan to the northeast, and the Philippines to the south.
Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter. One of the most popular contemporary female recording artists, she is known for narrative songs about her personal life, which has received much media attention.
Tajikistan (/tɑːˈdʒiːkᵻstɑːn/, /təˈdʒiːkᵻstæn/, or /tæˈdʒiːkiːstæn/; Тоҷикистон [tɔd͡ʒikɪsˈtɔn]), officially the Republic of Tajikistan (Tajik: Ҷумҳурии Тоҷикистон, Çumhurii Toçikiston), is a mountainous, landlocked country in Central Asia with an estimated 8 million people in 2013, and an area of 143,100 km2 (55,300 sq mi).
Taoism (/ˈdaʊɪzəm/), also known as Daoism, is a religious or philosophical tradition of Chinese origin which emphasizes living in harmony with the Tao (道, literally "Way", also romanized as Dao).
Tamil Nadu (English pronunciation: IPA: [t̪amiɻ n̪aːᶑu]; pronunciation ; Tamiḻ Nāṭu; literally 'The Land of Tamils' or 'Tamil Country') is one of the 29 states of India.
Tamil (English pronunciation: /ˈtæmɪl/; தமிழ்; Tamiḻ; [t̪ɐmɨɻ]; pronunciation ) is a Dravidian language predominantly spoken by the Tamil people of India and Sri Lanka, and also by the Tamil diaspora, Sri Lankan Moors, Burghers, Douglas, and Chindians.
Taekwondo (RP: /ˌtaɪ kwɒn ˈdəʊ/ or /ˌtaɪ ˈkwɒn dəʊ/, GA: /ˌtaɪ kwɑːn ˈdoʊ/; Korean: 태권도, Korean pronunciation: [tʰɛ.k͈wʌn.do]) is a Korean martial art, characterized by its emphasis on head-height kicks, jumping and spinning kicks, and fast kicking techniques.