Definitions

third party

NOUN

group other than principals

Synonyms

STRONGEST

mediator

WEAK

arbiter arbitrator minor party third force unbiased observer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Third-party net new assets also showed a weaker trend than JPM expected.

From The Wall Street Journal • Mar. 13, 2026

Third-party sellers can be sketchy and might not honor refund policies.

From Salon • Feb. 11, 2026

Third-party retailers on Amazon's marketplace in Germany set their own prices but Amazon uses various mechanisms to review them, and can remove products it considers too expensive.

From Barron's • Feb. 5, 2026

Third-party cookies track your online activity to pick up on your interests and introduce you to new brands and products that align with your taste and, importantly, your aspirations.

From MarketWatch • Oct. 10, 2025

Third-party batteries are risky because "the way to ensure that these bikes are as safe as possible is to make sure that the battery, the motor and the charger were all designed to work together".

From BBC • Feb. 8, 2024