Lexical Stress usage examples. Omographs.

Thanks professor for explaining us the principless of russian lexical stress. But what does it means in real life? Lexical stress in russian often creates omographs - 2 completely different meanings, 2 pronunciations but the same spelling.

I'll provide some examples

замОк [zamok] lock
зАмок [zamok] castle

парОм [parom] ferryboat
пАром [parom] by vapour

атлАс [atlas] satin
Атлас [atlas] atlas

жилА [zhila] lived
жИла [zhila] sinew

мукА [muka] flour
мУка [muka] sorrow

сорОк [sorok] magpie (plural, dativ)
сОрок [sorok] 40

заводИ [zavodi] wind up
зАводи [zavodi] backwater