1. the act of completing or carrying out a task, duty, or promise
Usage: British spelling; American spelling is 'fulfillment'
2. the state of being satisfied or content; a feeling of happiness from achieving something meaningful
3. the process of supplying or delivering goods ordered by a customer
Usage: business/commerce context

Examples

• The fulfilment of her childhood dream came when she graduated from university.
• He found great fulfilment in helping others through volunteer work.
• The company improved its order fulfilment time to just two days.
• Completing the marathon gave her a sense of personal fulfilment.
• The contract required the fulfilment of all obligations within six months.
• Many people seek fulfilment through meaningful careers and relationships.