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 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
extension course a course offered as part of an extension service
accommodation ladder (nautical) a portable ladder hung over the side of a vessel to give access to small boats alongside
extensible capable of being protruded or stretched or opened out
extensile capable of being protruded or stretched or opened out
extension act of expanding in scope
extended order a military formation for skirmishing
exterminator someone who exterminates
extortionate greatly exceeding bounds of reason or moderation
extensively in a widespread way
extortioner a criminal who extorts money from someone by threatening to expose embarrassing information about them
extension service an educational opportunity provided by colleges and universities to people who are not enrolled as regular students
extensor a skeletal muscle whose contraction extends or stretches a body part
expansion bolt a bolt that has an attachment that expands as the bolt is driven into a surface
expansion slot (computer) a socket in a microcomputer that will accept a plug-in circuit board
extortionately to an exorbitant degree