Definition

Adjective: 1. Positioned next to each other, with sides touching or very close: Describes two or more things or people that are placed immediately adjoining one another, often in a parallel line. 2. Existing together in close association or proximity: Describes different entities (e.g., ideas, groups, systems) coexisting in the same place or time, often despite differences.

Adverb: 1. Next to one another, in close proximity: Describes the manner of being positioned with sides adjacent. 2. Together, in close cooperation or association: Describes acting in unison or partnership.

Usage Examples

• Adjective:

  • The two friends walked in side-by-side chairs. (The chairs were positioned immediately next to each other.)
  • The report analyzes the side-by-side development of the two technologies. (It examines their closely associated development.)

• Adverb:

  • They worked side by side to finish the project on time. (They worked together in close cooperation.)
  • The old and new buildings stood side by side for years. (They stood next to each other in space.)

Advanced Usage

• "to stand/be placed side by side": To be positioned next to each other for comparison or coexistence.
  • The two proposals were placed side by side for the committee to evaluate.
• "to live side by side (with)": To coexist, often peacefully, despite differences.
  • Different communities have learned to live side by side in the city.

Variants and Related Words

• Adjacent (adjective): Next to or adjoining something else. (More formal)
• Abutting (adjective): Touching or bordering on something. (Often used for properties or structures)
• Juxtaposed (adjective/verb): Placed side by side, often for contrasting effect.

Synonyms

• Adjective: Adjacent, adjoining, neighboring, contiguous, abutting.
• Adverb: Together, jointly, in tandem, abreast, cheek by jowl.

Related Phrases

• Check by jowl: Very close together (often implying crowdedness).
• Shoulder to shoulder: Close together and united in effort or purpose.
• Neck and neck: Very close together in a race or competition.

Related Idioms

• "To compare side by side": To examine two or more items directly alongside each other to see similarities and differences.
  • You can really see the quality difference when you compare the models side by side.

Adjective

1. closely related or associated
   • a city in which communism and democracy had to live side by side
2. nearest in space or position; immediately adjoining without intervening space
   • had adjacent rooms
   • in the next room
   • the person sitting next to me
   • our rooms were side by side