Finalize is a word that denotes completion, closure, and conclusion. There are several synonyms for this word that can be used depending on the context. Some of these synonyms include "conclude," "complete," "wrap up," "finish," "seal," "sign off," "close," "settle," and "end." Each of these words implies a sense of finality and marks the end of a process. Finalize is often used in business or legal settings to describe the completion of a contract, deal, or negotiation. However, in everyday usage, finalize can also refer to the completion of a task or project, such as finalizing plans for a party or finalizing a manuscript before publication.