usability

As an adjective useful

is having a practical or beneficial use.

As a noun usability is

the state or condition of being usable.

As nouns the difference between usability and suitability

is that usability is the state or condition of being usable while suitability is the quality of being suitable.

As nouns the difference between unability and usability

is that unability is inability while usability is the state or condition of being usable.

As nouns the difference between suability and usability

is that suability is (legal) liability to be sued while usability is the state or condition of being usable.

As nouns the difference between usability and effectiveness

is that usability is the state or condition of being usable while effectiveness is the property of being effective, of achieving results.

As a noun usability

is the state or condition of being usable.

As a verb value is

.

As nouns the difference between usability and vaule

is that usability is the state or condition of being usable while vaule is fishing rod.

As nouns the difference between practicability and usability

is that practicability is the state of being practicable; feasibility while usability is the state or condition of being usable.

As nouns the difference between taxonomy and usability

is that taxonomy is the science or the technique used to make a classification while usability is the state or condition of being usable.

As nouns the difference between accessibility and usability

is that accessibility is the quality of being accessible, or of admitting approach; receptiveness while usability is the state or condition of being usable.