Definition of OPTIONAL. Meaning of OPTIONAL. Synonyms of OPTIONAL

- A nude beach, sometimes called a clothing-optional or free beach, is a beach where users are at liberty to be nude. Nude beaches usually have mixed bathing...
- The optional referendum is a referendum which comes from a request by governmental authorities or the public. The best known types of optional referendums...
- In probability theory, the optional stopping theorem (or sometimes Doob's optional sampling theorem, for American probabilist Joseph Doob) says that,...
- rule charters, optional charters, or optional plans, including muni****lities with home rule charters, optional charters, or optional plans. Most muni****lities...
- nude activities take place in either private spaces or separate clothing optional areas in public spaces. Occasional events, such as nude bike rides, may...
- purpose. Since the 1960s, with the acceptance of public places for clothing-optional recreation, individuals who do not identify themselves as naturists or...
- and compilers, although the type system of a language can be extended by optional tools that perform added checks using the language's original type syntax...
- United Nations except the United States. Two optional protocols were adopted on 25 May 2000. The First Optional Protocol restricts the involvement of children...
- to be ranked Optional preferential voting (OPV) requires only one candidate, the voter's first preference, to be indicated Semi-optional preferential...
- In the United States, Optional Practical Training (OPT) is a period during which undergraduate and graduate students with F-1 status who have completed...