1. (v.t.)fulfill to carry out, or bring to realization, as a prophecy or promise.
2. fulfill to perform or do, as duty; obey or follow, as commands.
3. fulfill to satisfy (requirements, obligations, etc.): to fulfill a long-felt need.
4. fulfill to bring to an end; finish or complete, as a period of time.
5. fulfill to develop the fullpotential of (usu. used reflexively): to fulfill oneself in charitable work.
Etymology: (bef. 1000; ME; late OE fullfyllan=fullfull1+fyllan to fill)
Definition of 'fulfill'
Princeton's WordNet
1. (verb)carry through, accomplish, execute, carry out, action, fulfill, fulfil put in effect "carry out a task"; "execute the decision of the people"; "He actioned the operation"
2. (verb)satisfy, fulfill, fulfil, live up to meet the requirements or expectations of
3. (verb)meet, satisfy, fill, fulfill, fulfil fill or meet a want or need
Definition of 'fulfill'
Webster Dictionary
1. (verb)fulfill to fill up; to makefull or complete
2. (verb)fulfill to accomplish or carry into effect, as an intention, promise, or prophecy, a desire, prayer, or requirement, etc.; to complete by performance; to answer the requisitions of; to bring to pass, as a purpose or design; to effectuate
Definitions of fulfill 
