stages

any distinct time period in a sequence of events;
a specific identifiable position in a continuum or series or especially in a process;
a large platform on which people can stand and can be seen by an audience;
the theater as a profession (usually `the stage');
a large coach-and-four formerly used to carry passengers and mail on regular routes between towns;
a section or portion of a journey or course;
any scene regarded as a setting for exhibiting or doing something;
a small platform on a microscope where the specimen is mounted for examination
perform (a play), especially on a stage;
plan, organize, and carry out (an event);

stages is a valid Scrabble (US) TWL word

stages is a valid Scrabble Word in Merriam-Webster MW Dictionary

stages is a valid Scrabble Word in International Collins CSW Dictionary

stages is a valid Words With Friends word