Russian speakers! Please explain the difference between the words 写褉褍谐 and 褌芯胁邪褉懈褖?

I will say it again; if you don't speak Russian, please save your time. I can use an online translator just as well as you can.Russian speakers! Please explain the difference between the words 写褉褍谐 and 褌芯胁邪褉懈褖?
写褉褍谐 (male) and 锌芯写褉褍谐邪 (female) mean "friend" . It's also common to call a girlfriend 锌芯写褉褍谐邪, but for the boyfriend we prefer the word 锌邪褉械薪褜 - "fellow".

褌芯胁邪褉懈褖 (both genders) means "comrade" and "colleague" (褌芯胁邪褉懈褖 锌芯 褉邪斜芯褌械), or "fellow soldier", "companion in arms" (褌芯胁邪褉懈褖 锌芯 芯褉褍卸懈褞).

This word was also a substitution for Mr, Mrs and Ms in the Soviet Era. Originally it was meant to outline the equality among people in the new society. Nowadays it's back to its normal original meanings.

It derived from an Old Turkish word which meant "merchant".Russian speakers! Please explain the difference between the words 写褉褍谐 and 褌芯胁邪褉懈褖?
Well, 写褉褍谐 is a friend, and 褌芯胁邪褉懈褖 is a comrade, but it hasn't recovered yet from its decades of use as the standard term of address primarily among Communist Party members.