13-Letter Words Containing: E,N,T,N,E,R

• of or relating to a 500th anniversary

• the 500th anniversary (or the celebration of it)

• the act of conducting a controlled test or investigation

• the testing of an idea

• a venture at something new or different

• to conduct a test or investigation

• try something new, as in order to gain experience

• package in a container

• To expand or extend to an excessive degree, especially to do so beyond a safe limit.

• To apply (a term) to too many referents, by overextension.

• To push a pawn too far, so that it becomes vulnerable to the opponent's attacks.