Pronunciation: (ik-spres'),[key] —v.t. 1. to put (thought) into words; utter or state: to express an idea clearly. 2. to show, manifest, or reveal: to express one's anger. 3. to set forth the opinions, feelings, etc., of (oneself), as in speaking, writing, or painting: He can express himself eloquently. 4. to represent by a symbol, character, figure, or formula: to express water asH2O; to express unknown quantities algebraically. 5. to send by express: to express a package or merchandise. 6. to press or squeeze out: to express the juice of grapes. 7. to exude or emit (a liquid, odor, etc.), as if under pressure: The roses expressed a sweet perfume. 8. Genetics.(of a gene) to be active in the production of (a protein or a phenotype).
—adj. 1. clearly indicated; distinctly stated; definite; explicit; plain: He defied my express command. 2. special; definite: We have an express purpose in being here. 3. direct or fast, esp. making few or no intermediate stops: an express train; an express elevator. 4. used for direct or high-speed travel: an express highway. 5. duly or exactly formed or represented: an express image. 6. pertaining to an express: an express agency.
—n. 1. an express train, bus, elevator, etc.
2. a system or method of sending freight, parcels, money, etc., that is faster and safer, but more expensive, than ordinary freight service: We agree to send the package by express. 3. a company engaged in this business.
4. Brit.a messenger or a message specially sent.
5. something sent by express.
—adv. 1. by express: to travel express. 2. Obs.expressly.