regularly or frequently behave in a particular way or have a certain characteristic:written language tends to be formal her hair tended to come loose [no object] (
tend to/towards)
be liable to possess or display (a particular characteristic):Walter tended towards corpulence [no object, with adverbial] go or move in a particular direction:fire is hot and tends upwards [no object] (
tend to)
Mathematics (of a variable) approach a given quantity as a limit:the orbit tends to infinity