Commit and Book

• (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 work or composition that has been published (printed on pages bound together. )
  • usage: "I am reading a good book on economics"
• Physical objects consisting of a number of pages bound together.
  • usage: "he used a large book as a doorstop"
  • synonyms: volume
• A compilation of the known facts regarding something or someone.
  • usage: "Al Smith used to say, `Let's look at the record'"; "his name is in all the record books"
  • synonyms: record, record book
• A written version of a play or other dramatic composition; used in preparing for a performance.
  • synonyms: script, playscript
• A record in which commercial accounts are recorded.
  • usage: "they got a subpoena to examine our books"
  • synonyms: ledger, leger, account book, book of account
• A collection of playing cards satisfying the rules of a card game.
• A collection of rules or prescribed standards on the basis of which decisions are made.
  • usage: "they run things by the book around here"
  • synonyms: rule book
• The sacred writings of Islam revealed by God to the prophet Muhammad during his life at Mecca and Medina.
  • synonyms: Koran, Quran, al-Qur'an
• The sacred writings of the Christian religions.
  • usage: "he went to carry the Word to the heathen"
  • synonyms: Bible, Christian Bible, Good Book, Holy Scripture, Holy Writ, Scripture, Word of God, Word
• A major division of a long written composition.
  • usage: "the book of Isaiah"
• A number of sheets (ticket or stamps etc.) bound together on one edge.
  • usage: "he bought a book of stamps"

verb

• Engage for a performance.
  • usage: "Her agent had booked her for several concerts in Tokyo"
• Arrange for and reserve (something for someone else) in advance.
  • usage: "reserve me a seat on a flight"; "The agent booked tickets to the show for the whole family"; "please hold a table at Maxim's"
  • synonyms: reserve, hold
• Record a charge in a police register.
  • usage: "The policeman booked her when she tried to solicit a man"
• Register in a hotel booker. .

• (v.t.) To mark out for; to destine or assign for; as, he is booked for the valedictory.
• (n.) A volume or collection of sheets in which accounts are kept; a register of debts and credits, receipts and expenditures, etc.
• (n.) A part or subdivision of a treatise or literary work; as, the tenth book of "Paradise Lost.".
• (n.) A collection of sheets of paper or similar material, blank, written or printed, bound together; commonly, many folded and bound sheets containing continuous printing or writing.
• (v.t.) To enter the name of (any one) in a book for the purpose of securing a passage, conveyance or seat; as, to be booked for Southampton; to book a seat in a theater.
• (v.t.) To enter, write or register in a book or list.
• (n.) Six tricks taken by one side, in the game of whist; in certain other games, two or more corresponding cards, forming a set.
• (n.) A composition, written or printed; a treatise.

Book is a term which has several meanings. It can refer to a broker's client list; it may refer to the size and variety of a trader's or trading desk's positions; it may also refer to the process of recording a trade or transaction.