обратный

обратный

Reverse; opposite; backward; return.

In this sentence, 'обратный' is used to describe the address to which the letter should be returned, highlighting its meaning as 'return' or 'reverse'.

Я написал обратный адрес на конверте.

I wrote the return address on the envelope.

Here, 'обратный' denotes the reverse or opposite process of heating, showcasing its use in contexts involving reversal or opposition.

Когда выключаешь мотор, начинается обратный процесс охлаждения.

When you turn off the engine, the reverse cooling process begins.

'Обратный' is used to describe the ticket that covers the return journey, encapsulating its meaning as 'return' in a travel-related scenario.

Он взял обратный билет до Москвы.

He bought a return ticket to Moscow.