Bottom line and Upkeep

Bottom line noun - The central part or aspect of something under consideration.

Upkeep and bottom line are semantically related. In some cases you can use "Upkeep" instead a noun phrase "Bottom line".

Upkeep noun - The act or activity of keeping something in an existing and usually satisfactory condition.

Bottom line and upkeep are semantically related. Sometimes you can use "Bottom line" instead a noun "Upkeep".