to spread; to proliferate; to diffuse

expansion; dilation; to expand (e.g. one's power or influence); to broaden

to extend; to expand; extension; expansion

megaphone; loudspeaker; amplifier; microphone

to enlarge

to enlarge color photos; color film processing

to expand

armament; to expand armed forces

(Internet slang) to add a friend (on a social network etc)

to enlarge (a photo); to print larger

to extend to

to augment; to amplify; to extend; to expand

to widen a tube; to ream (i.e. widen a hole)

to ramp up capacity; to expand in scale

to extend (a building, an airport runway etc)

(of a school) to expand enrollment; (of an organization) to ramp up hiring

to increase the number of pages or the size of the pages of a publication

to expand (esp. by new recruitment); to increase the army; to augment

to expand the balance sheet

to amplify (sound)

to extend the scope; to exaggerate

(file) extension (computing)

docking station

chest expander (exercise equipment)

amplifier; loudspeaker; hearing aid

nuclear proliferation

augmented reality (computing)

(computing) extension (for a software application, esp. web browsers)

to let everyone know; spread the word!

nuclear nonproliferation

gaseous diffusion

seafloor spreading (geology)

to expand production; to reproduce on an extended scale

theory of seafloor spreading (geology)

extensible markup language (XML)

Treaty on the Non-Proliferation of Nuclear Weapons