compulsory vs voluntary
Definitions
adjective
- required by rule
Examples
Retirement is likely to move from an abrupt halt at a fixed age to a more gradual withdrawal, with the abolition of compulsory retirement ages.
Article 13 requires, subject to Article 15, that authorized warehouse keepers shall give compulsory guarantees to cover movement of the dutiable goods.
Medical inspections for schoolchildren become compulsory by law.
Definitions
adjective
- controlled by individual volition
- of your own free will or design; done by choice; not forced or compelled
noun
- composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance
- (military) a person who freely enlists for service
Examples
At election time the party needs a lot of voluntary helpers.
The coulpe or peccavi, is made for a very small matter — a broken glass, a torn veil, an involuntary delay of a few seconds at an office, a false note in church, etc.; this suffices, and the coulpe is made.
Otherwise you'll just have to pump as much as you can into the scheme through voluntary contributions, although scope here is limited as you are restricted to a maximum of 15% of your annual salary.
