IPA: /teɪn/
KK: /teɪn/
A very thin sheet of metal, often made of tin, used for various purposes such as wrapping food or as a backing for mirrors.
The chef wrapped the leftovers in a piece of tain to keep them fresh.
This word originates from Latin 'tenere', meaning to hold or keep. The word 'tain' is a variant of 'tain' in 'retain', which means to hold back or keep something.
Think of 'holding' something ('tenere') to remember that 'tain' relates to keeping or holding.