(computer science) a copy of a file or directory on a separate storage device; "he made a backup in case the original was accidentally damaged or erased"
an accumulation caused by clogging or a stoppage; "a traffic backup on the main street"; "he discovered a backup in the toilet"
a person or thing that takes or can take the place of another
an athlete who plays only when a starter on the team is replaced
put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk with fat-free milk"
be a substitute; "The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"
act as a substitute; "She stood in for the soprano who suffered from a cold"
a juvenile between the onset of puberty and maturity
in the state of development between puberty and maturity; "adolescent boys and girls"
displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes"
being of the age 13 through 19; "teenage mothers"; "the teen years"
relating to or peculiar to or suggestive of an adolescent; "adolescent problems"
joyful and proud especially because of triumph or success; "rejoicing crowds filled the streets on VJ Day"; "a triumphal success"; "a triumphant shout"
form into a cylinder by rolling; "Roll up the cloth"
arrive in a vehicle: "He rolled up in a black Mercedes"
get or gather together; "I am accumulating evidence for the man's unfaithfulness to his wife"; "She is amassing a lot of data for her thesis"; "She rolled up a small fortune"
take the place or move into the position of; "Smith replaced Miller as CEO after Miller left"; "the computer has supplanted the slide rule"; "Mary replaced Susan as the team's captain and the highest-ranked player in the school"