extension ladder a ladder whose length can be extended
extension cord an electric cord used to extend the length of a power cord
extensional defining a word by listing the class of entities to which the word correctly applies
extension act of expanding in scope
extension agent an advisor employed by the government to assist people in rural areas with methods of farming and home economics
extension phone an additional telephone set that is connected to the same telephone line
accommodation ladder (nautical) a portable ladder hung over the side of a vessel to give access to small boats alongside
extension course a course offered as part of an extension service
extensible capable of being protruded or stretched or opened out
extensile capable of being protruded or stretched or opened out
extensively in a widespread way
extortionate greatly exceeding bounds of reason or moderation
exterminator someone who exterminates
extensive large in spatial extent or range or scope or quantity
extended order a military formation for skirmishing
extortioner a criminal who extorts money from someone by threatening to expose embarrassing information about them
extensor a skeletal muscle whose contraction extends or stretches a body part
extrapolate draw from specific cases for more general cases
intentionality expressive of intentions
ostensible appearing as such but not necessarily so