noun

• (uncountable) Equipment or paraphernalia, especially that used for an athletic endeavor.
• (obsolete) Goods; property; household items.
  "Homely gear and common ware."
• (countable) A wheel, wheel segment, or bar with grooves (teeth) engraved on the outer circumference, such that two such devices can interlock and convey motion from one to the other.
  "Near-synonyms: (wheel types) cog, cogwheel, gear wheel, gearwheel"
• (countable, automotive, cycling) A particular combination or choice of interlocking gears, such that a particular gear ratio is achieved; often selected via a shifter.

verb

• (engineering, transitive) To provide with gearing; to fit with gears in order to achieve a desired gear ratio.
• (engineering, intransitive) To be in gear, come into gear.
• (usually with to or toward(s)) To design or devise (something) so as to be suitable (for a particular type of person or a particular purpose).
  "This shop is not really geared towards people of our age."
• (finance) To borrow money in order to invest it in assets.

adj

• (chiefly Liverpool) great or fantastic