Commit and Guarantee

• (v.t.) To give in trust; to put into charge or keeping; to intrust; to consign; -- used with to, unto.
• (v.t.) To confound.
• (v.i.) To sin; especially, to be incontinent.
• (v.t.) To put in charge of a jailor; to imprison.
• (v.t.) To join for a contest; to match; -- followed by with.
• (v.t.) To pledge or bind; to compromise, expose or endanger by some decisive act or preliminary step; -- often used reflexively; as, to commit one's self to a certain course.
• (v.t.) To do; to perpetrate, as a crime, sin or fault.

verb

• Perform an act, usually with a negative connotation.
  • usage: "perpetrate a crime"; "pull a bank robbery"
  • synonyms: perpetrate, pull
• Give entirely to a specific person, activity, or cause.
  • usage: "She committed herself to the work of God"; "give one's talents to a good cause"; "consecrate your life to the church"
  • synonyms: give, dedicate, consecrate, devote
• Cause to be admitted; of persons to an institution.
  • usage: "After the second episode, she had to be committed"; "he was committed to prison"
  • synonyms: institutionalize, institutionalise, send, charge
• Confer a trust upon.
  • usage: "The messenger was entrusted with the general's secret"; "I commit my soul to God"
  • synonyms: entrust, intrust, trust, confide
• Make an investment.
  • usage: "Put money into bonds"
  • synonyms: invest, put, place
• Engage in or perform.
  • usage: "practice safe sex"; "commit a random act of kindness"
  • synonyms: practice

(DoD) The process of committing one or more air interceptors or surface-to-air missiles for interception against a target track.

noun

• A written assurance that some product or service will be provided or will meet certain specifications.
  • synonyms: warrant, warrantee, warranty
• An unconditional commitment that something will happen or that something is true.
  • usage: "there is no guarantee that they are not lying"
• A collateral agreement to answer for the debt of another in case that person defaults.
  • synonyms: guaranty

verb

• Give surety or assume responsibility.
  • usage: "I vouch for the quality of my products"
  • synonyms: vouch
• Make certain of.
  • usage: "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success"
  • synonyms: ensure, insure, assure, secure
• Promise to do or accomplish.
  • usage: "guarantee to free the prisoners"
  • synonyms: undertake
• Stand behind and guarantee the quality, accuracy, or condition of.
  • usage: "The dealer warrants all the cars he sells"; "I warrant this information"
  • synonyms: warrant

• (n.) In law and common usage: to undertake or engage for the payment of (a debt) or the performance of (a duty) by another person; to undertake to secure (a possession, right, claim, etc.) to another against a specified contingency or at all avents; to give a guarantee concerning; to engage, assure or secure as a thing that may be depended on; to warrant; as, to guarantee the execution of a treaty.
• (n.) In law and common usage: A promise to answer for the payment of some debt or the performance of some duty, in case of the failure of another person, who is, in the first instance, liable to such payment or performance; an engagement which secures or insures another against a contingency; a warranty; a security. Same as Guaranty.
• (n.) The person to whom a guaranty is made; -- the correlative of guarantor.
• (n.) One who binds himself to see an undertaking of another performed; a guarantor.

guarantee is a promise, especially in writing, that something is of specified quality, content, benefit, or that it will provide satisfaction or will perform or produce in a specified manner. In the thrift industry, one such guarantee is the promise of the issuer of mortgage-backed securities that the issuer will pay principal and interest to investors in those securities, even if borrowers of the underlying mortgage loans default. See: guaranty.