mlčet před kým o čem, o tom ani muk

So, darling, keep mum about where we are. BNC

I was told to keep mum about it. BNC

And so Ed and Kath decide to keep mum about Mr Sloane's murder of their father. BNC

dodržet slib manželství

Jennifer's childhood sweetheart from Rock Throw, West Virginia arrives at the station, expecting her to keep her promise to marry him. WebC

After having been reported dead, Pete suddenly returns home a rich man, and Philip persuades Kate to keep her promise to marry his friend. WebC

He introduced himself to her. He wanted to know whether she would keep
her promise to marry him if she could not guess where he was hidden. WebC

být velmi pohostinný

We keep open house here and they can come and go as they please before settling down, as many do, after a few attempts. BNC

Easy enough to keep open house when someone else pays, isn't it? BNC

They have always kept an open house. BNC

spřízněni sňatkem (ne rodem)

Although there has been no bloodline established at this point there is a kinship by marriage. WebC

Terms like father-in-law, mother-in-law, etc. had the same meaning as they do today, which is a kinship by marriage. WebC

In the case of kinship by marriage, a man may not marry his wife's female ascendants, the wives of his own ascendants, nor the wives of his children. WebC