WordRel.com

• act of extending over a wider scope or expanse of space or time

  synonym	spread
  derivation	spread
  hypernym	extension
  hyponym	circulationdecentralisationdecentralizationdiffusiondispersaldispersiondisseminationscatterscatteringstrewing

• the opening of a subject to widespread discussion and debate

  synonym	airingdisseminationpublic exposure
  derivation	spread
  hypernym	transmission
  hyponym	circulationextensionpropagation

• process or result of distributing or extending over a wide expanse of space

  synonym	spread
  derivation	spread
  hypernym	change of locationtravel
  hyponym	diffusiondispersioninvasionirradiationradiationscattering