Functioning and Serviceable

noun

• Process or manner of functioning or operating.
  • usage: "the power of its engine determines its operation"; "the plane's operation in high winds"; "they compared the cooking performance of each oven"; "the jet's performance conformed to high standards"
  • synonyms: operation, performance

verb

• Perform as expected when applied.
  • usage: "The washing machine won't go unless it's plugged in"; "Does this old car still run well"; "This old radio doesn't work anymore"
  • synonyms: function, work, operate, go, run
• Serve a purpose, role, or function.
  • usage: "The tree stump serves as a table"; "The female students served as a control group"; "This table would serve very well"; "His freedom served him well"; "The table functions as a desk"
  • synonyms: serve, function
• Perform duties attached to a particular office or place or function.
  • usage: "His wife officiated as his private secretary"
  • synonyms: officiate, function

adjective

• Performing or able to perform its regular function.
  • usage: "a functioning flashlight"

adjective

• Ready for service or able to give long service.
  • usage: "serviceable equipment"; "heavy serviceable fabrics"
• Capable of being put to good use.
  • usage: "a serviceable kitchen gadget"
• Intended or able to serve a purpose without elaboration.
  • usage: "serviceable low-heeled shoes";

• (a.) Doing service; promoting happiness, interest, advantage or any good; useful to any end; adapted to any good end use; beneficial; advantageous.
• (a.) Prepared for rendering service; capable of or fit for, the performance of duty; hence, active; diligent.