ŽENY (žena) can mean a wife in many cases. As well as MUŽ can mean a husband. Pretty much in 100% of cases where you say 'my woman, my man, his woman, their men... it means wife/husband. And many other cases. Čeká na ženu = he is waiting for (his) wife. If he was waiting for some unknown woman, Czech would say exactly that - some - nějakou.