TA Definition

TA
abbreviation

1. Territorial Army.

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Ta
symbol

1. chem.
Tantalum.

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ta
exclamation

(Brit)
1. colloq
Thank you.

Etymology: 18c: imitating a young child's pronunciation.

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Territorial Army
noun

1. In the UK: a fully trained volunteer force intended to provide back-up to the regular army in cases of emergency.