'know-how' definitions:

Definition of 'know-how'

From: WordNet
noun
The (technical) knowledge and skill required to do something

Definition of 'know-how'

From: GCIDE
  • knowhow \know"how`\, know-how \know"-how`\(n[=o]"hou`) n. the knowledge and skill required to do something; practical knowledge for a specific task.
  • Syn: knowhow. [WordNet 1.5]