Synonyms of the word

facultative

• adj. Of or relating to faculty, especially to mental faculty.
• adj. Not obligate; optional, discretionary or elective.
• adj. That grants permission or power to do something.
• adj. (biology) Able to perform a particular life function, or to live generally, in more than one way.
• adj. (geometry, of a point) At which a given function is positive.

ability

• n. (obsolete) Suitableness.
• n. (uncountable) The quality or state of being able; capacity to do; capacity of doing something; having…
• n. The legal wherewithal to act.
• n. (now limited to Scotland dialects) Physical power.
• n. (archaic) Financial ability.
• n. (uncountable) A unique power of the mind; a faculty.
• n. (countable) A skill or competence in doing; mental power; talent; aptitude.

enabling

• v. present participle of enable.
• n. An act or an instance of enabling something.

optional

• adj. Not compulsory; left to personal choice; elective.
• n. Something that is not compulsory, especially part of an academic course.
• n. (programming) In the Swift programming language, a kind of variable that is assigned a specific data type…

power

• n. (social) Ability to coerce, influence or control.
• n. (physical, uncountable) Effectiveness.
• n. (mathematics).
• n. (biblical, in the plural) In Christian angelology, an intermediate level of angels, ranked above archangels,…
• v. (transitive) To provide power for (a mechanical or electronic device).
• v. (transitive) To hit or kick something forcefully.
• v. To enable or provide the impetus for.
• adj. (Singapore, colloquial) Impressive.