particularly, especially, in particular...

special, particular, extraordinary...

feature, trait, characteristic...

special, particular, peculiar...

specific, particular, designated...

peculiarity, uniqueness, characteristic...

patent, special permission, license...

feature (e.g. newspaper), special edition, report

feature (e.g. newspaper), special edition, report

characteristic, feature, idiosyncrasy...

characteristic (of), peculiar (to)

unique, peculiar, singular

limited express (train for which a limited-express ticket is required), limited express (train making a limited no. of stops), great hurry

privilege, special right

being produced in a particular region, local specialty

special case, exception

special investigation

special training, intensive training, crash course

characteristic, feature, special quality

special skill

special sale, bargain sale

special envoy

special characteristic, special quality, trait...

Catholic, Catholicism, Catholic Church

(special) correspondent (e.g. for a newspaper), representative, delegate

setting up specially, special installation

special make, deluxe

extra-large, king-size

exceptional, unusual, special...

privilege, special favor, special favour...