tightening

As verbs the difference between fastening and tightening

is that fastening is present participle of to fasten.tightening is present participle of tighten.

As nouns the difference between fastening and tightening

is that fastening is a hook or similar restraint used to fasten things together while tightening is the act or process of making more tight.

As verbs the difference between rightening and tightening

is that rightening is while tightening is .

As a noun tightening is

the act or process of making more tight.

As verbs the difference between lightening and tightening

is that lightening is present participle of lang=en while tightening is present participle of tighten.

As nouns the difference between lightening and tightening

is that lightening is the sensation caused by the descent of the uterus into the pelvic cavity before the onset of labour while tightening is the act or process of making more tight.