able vs stand-alone

able

adj
  • Free from constraints preventing completion of task; permitted to; not prevented from. 

  • Gifted with skill, intelligence, knowledge, or competence. 

  • Having the necessary powers or the needed resources to accomplish a task. 

  • Legally qualified or competent. 

  • Capable of performing all the requisite duties; as an able seaman. 

noun
  • The letter "A" in Navy Phonetic Alphabet. 

stand-alone

adj
  • Operating, functioning, or existing without additions or assistance; independent; able to be separate or separated. 

noun
  • A device that can operate on its own, rather than as an accessory for another device. 

  • Something that is not a part of some series or sequence. 

How often have the words able and stand-alone occurred in a corpus of books? (source: Google Ngram Viewer )