Is esterfication a substitution or addition reaction?

Where two or more molecules are combined to form a larger one.

The English term 'addition reaction' means a chemical reaction in which one molecule is added to another

a substitution reaction is a functional group in a particular chemical compound that is replaced by another group. AND BEFORE YOU ASK functional groups are specific groups of atoms within molecules...

The cation formed upon addition of an electrophile to benzene is highly stabilized by resonance,whereas the cation formed to an alkene is stabilized by hyperconjugation. The loss of a proton in...

In an addition reaction to an alkene, the original double bond between two carbon atoms is converted to a single bond, and each carbon atom that was originally double bonded forms a new single bond...