special

surpassing what is common or usual or expected

he paid especial attention to her

exceptional kindness

having a specific function or scope

a special (or specific) role in the mission

unique or specific to a person or thing or category

the particular demands of the job

has a particular preference for Chinese art

for a special service or occasion

a special correspondent

a special adviser to the committee

first and most important

his special interest is music

she gets special (or particular) satisfaction from her volunteer work

adapted to or reserved for a particular purpose

a special kind of paint

a special medication for arthritis

added to a regular schedule

a special holiday flight

put on special buses for the big game

a television production that features a particular person or work or topic

the last of a series of BBC specials on Iran is being shown tonight

a special offering (usually temporary and at a reduced price) that is featured in advertising

they are having a special on pork chops

a dish or meal given prominence in e.g. a restaurant