Commit and Contend

• (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.

verb

• Maintain or assert.
  • usage: "He contended that Communism had no future"
  • synonyms: postulate
• Have an argument about something.
  • synonyms: argue, debate, fence
• To make the subject of dispute, contention, or litigation.
  • usage: "They contested the outcome of the race"
  • synonyms: contest, repugn
• Come to terms with.
  • usage: "We got by on just a gallon of gas"; "They made do on half a loaf of bread every day"
  • synonyms: cope, get by, make out, make do, grapple, deal, manage
• Compete for something; engage in a contest; measure oneself against others.
  • synonyms: compete, vie
• Be engaged in a fight; carry on a fight.
  • usage: "the tribesmen fought each other"; "Siblings are always fighting"; "Militant groups are contending for control of the country"
  • synonyms: fight, struggle

• (v.i.) To strive in opposition; to contest; to dispute; to vie; to quarrel; to fight.
• (v.i.) To strive in debate; to engage in discussion; to dispute; to argue.
• (v.t.) To struggle for; to contest.
• (v.i.) To struggle or exert one's self to obtain or retain possession of or to defend.