›FINANCEan amount of money or a number that is used to compare other amounts of money or numbers to, especially as a way of measuring whether they have increased or decreased: a baseline price/figure/rate$13 million was added to the baseline budget for the district attorney's office.
›a minimum level of quality, safety, etc. that is considered to be necessary in a particular situation: baseline for sthEurope's steelmakers have proposed a system that sets a baseline for carbon efficiency.baseline of sthThe new features should provide a baseline of security for Windows users.