Definitions of propagate:

• verb:   travel through the air

  Example: "Sound and light propagate in this medium"

• verb:   transmit from one generation to the next

  Example: "Propagate these characteristics"

• verb:   multiply sexually or asexually
• verb:   cause to propagate, as by grafting or layering
• verb:   transmit or cause to broaden or spread

  Example: "This great civilization was propagated throughout the land"

• verb:   transmit

  Example: "Propagate sound or light through air"

• verb:   become distributed or widespread
• verb:   cause to become widely known