Definition of "Begin" :
noun: Israeli statesman (born in Russia) who (as prime minister of Israel) negotiated a peace treaty with Anwar Sadat (then the president of Egypt) (1913-1992)
verb: take the first step or steps in carrying out an action
verb: set in motion, cause to start
"Begin a new chapter in your life."
verb: begin to speak or say
verb: begin to speak, understand, read, and write a language
verb: achieve or accomplish in the least degree, usually used in the negative
"This economic measure doesn't even begin to deal with the problem of inflation."
verb: begin an event that is implied and limited by the nature or inherent function of the direct object
"Begin a cigar."
verb: have a beginning, in a temporal, spatial, or evaluative sense
"The DMZ begins right over the hill."
verb: have a beginning characterized in some specified way
"The novel begins with a murder."
verb: have a beginning, of a temporal event
"The company's Asia tour begins next month."
verb: be the first item or point, constitute the beginning or start, come first in a series
"The number one' begins the sequence."