Letters that make optional
a, o, l, n, p, t, i are letters that make 'optional'
Words within optional
ti, opt, on, option, AL, Io, ion, Al, Pt, Na, Ti are words within 'optional'
a, o, l, n, p, t, i are letters that make 'optional'
ti, opt, on, option, AL, Io, ion, Al, Pt, Na, Ti are words within 'optional'
1 possible definitions for 'optional'
Under this definition, optional is an adjective and has the following properties:
obligatory has the opposite meaning of optional
nonobligatory, elective, ex gratia, facultative, nonmandatory are similar to 'optional'.