Million and Never-ending

Million adjective - (in Roman numerals, M written with a macron over it) denoting a quantity consisting of 1,000,000 items or units.

Never-ending and million are semantically related. In some cases you can use "Never-ending" instead an adjective "Million".

Never-ending adjective - Uninterrupted in time and indefinitely long continuing.

Million and never-ending are semantically related. Sometimes you can use "Million" instead an adjective phrase "Never-ending".