Sideline
WordNet
noun
(1) An auxiliary activity
(2) An auxiliary line of merchandise
(3) A line that marks the side boundary of a playing field
verb
(4) Remove from the center of activity or attention; place into an inferior position
"The outspoken cabinet member was sidelined by the President"
WiktionaryText
Noun
sideline
- The boundaries of a playing field.
- The coach stood on the sidelines and bellowed commands at the team.
- The outside or perimeter of any activity.
- She installed the whole fixture while he simply watched from the sidelines.
- Something that is additional or extra or that exists around the edges or margins of a main item.
- She started the business as a sideline to her regular work and it ended up becoming the greater source of income.
- Soup need not be just a sideline to a meal; if you like, it can be the main course.
Verb
- To place on the sidelines; to bench or to keep someone out of play.
- The coach sidelined the player until he regained his strength.
- To remove or keep out of circulation.
- The illness sidelined him for weeks.