Sideline (Noun)

Meaning ¹

A line that marks the side boundary of a playing field.

Classification

Nouns denoting spatial position.

Synonyms

• Out Of Bounds

Meaning ²

An auxiliary activity.

Classification

Nouns denoting acts or actions.

Synonyms

• Avocation
• Hobby
• Pursuit
• By-line
• Spare-time Activity

Hypernyms

• Pursuit
• Pastime
• Interest

Hyponyms

• Spelaeology
• Speleology

Meaning ³

An auxiliary line of merchandise.

Classification

Nouns denoting man-made objects.

Hypernyms

• Line Of Merchandise
• Line Of Products
• Product Line
• Line Of Business
• Business Line