Particular
Part of speech: noun
Definition: A particular thing.
Part of speech: adjective
Definition: Pertaining only to a part of something; partial. Specific; discrete; concrete. Specialised; characteristic of a specific person or thing. Known only to an individual person or group; confidential. Distinguished in some way; special (often in negative constructions). Of a person, concerned with, or attentive to, details; minute; precise; fastidious.
Example sentence: They say Rome wasn't built in a day, but I wasn't on that particular job.
Special
Part of speech: adjective
Definition: Distinguished by a unique or unusual quality.Of particular interest or value; certain; dear; beloved; favored.Retarded; mentally handicappedConstituting or relating to a species.
Part of speech: noun
Definition: A reduction in consumer cost (usually for a limited time) for items or services renderedUnusual or exceptional episode of a seriesA special constableA reduction in consumer cost (usually for a limited time) for items or services rendered.
Example sentence: When government - in pursuit of good intentions - tries to rearrange the economy, legislate morality, or help special interests, the cost come in inefficiency, lack of motivation, and loss of freedom. Government should be a referee, not an active player.