Commit and Letter

• (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 message addressed to a person or organization.
  • usage: "mailed an indignant letter to the editor"
  • synonyms: missive
• The conventional characters of the alphabet used to represent speech.
  • usage: "his grandmother taught him his letters"
  • synonyms: letter of the alphabet, alphabetic character
• Owner who lets another person use something (housing usually) for hire.
• A strictly literal interpretation (as distinct from the intention. )
  • usage: "he followed instructions to the letter"; "he obeyed the letter of the law"
• An award earned by participation in a school sport.
  • usage: "he won letters in three sports"
  • synonyms: varsity letter

verb

• Win an athletic letter.
• Set down or print with letters.
• Mark letters on or mark with letters. .

• (n.) A writing; an inscription.
• (n.) A written or printed communication; a message expressed in intelligible characters on something adapted to conveyance, as paper, parchment, etc.; an epistle.
• (n.) A single type; type, collectively; a style of type.
• (n.) A letter; an epistle.
• (n.) A mark or character used as the representative of a sound or of an articulation of the human organs of speech; a first element of written language.
• (n.) One who lets or permits; one who lets anything for hire.
• (n.) Learning; erudition; as, a man of letters.
• (n.) Verbal expression; literal statement or meaning; exact signification or requirement.
• (n.) One who retards or hinders.
• (v.t.) To impress with letters; to mark with letters or words; as, a book gilt and lettered.
• (n.) A telegram longer than an ordinary message sent at rates lower than the standard message rate in consideration of its being sent and delivered subject to priority in service of regular messages. Such telegrams are called by the Western Union Company day, / night, letters according to the time of sending, and by The Postal Telegraph Company day, / night, lettergrams.