OPEN UP

{v.} 1. To show for the first time; make clear; reveal. * /The story of Helen Keller's life opened up a whole new world to Mary./ * /Einstein's theories opened up a whole new area for study./ 2. To make available; present an opportunity; offer. * /The building of the railroad opened up new lands to the pioneers./ * /John opened up a whole new section of the Scrabble board./ 3. {informal} To go faster. * /When they got out on the highway John opened up and drove at 65 miles per hour./ 4. {informal} To begin to shoot. * /When they got close to the enemy lines, they opened up with all they had./ 5. {informal} To begin to talk frankly. * /After John learned to trust Mr. Jones, he opened up and told him how he felt./ 6. To spread out. * /After a while the road opened up and they traveled more quickly./ 7. To become available. * /When she got her college diploma, many new jobs opened up./