Thesaurus.com
Dictionary.com
Definitions

swear by



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.

“At the end of the day, the government is going to go with systems that have been deployed, where combatant commanders swear by the fact that they want one of what we have,” Mengucci said.

From Barron's • Jan. 15, 2026

Side-sleepers, for example, swear by the Trtl pillow, which wraps around your neck like a sturdy, supportive scarf.

From The Wall Street Journal • Dec. 23, 2025

Some people swear by writing a song every day and finishing it, even if it’s bad.

From Los Angeles Times • Dec. 1, 2025

All of these sports have their own history and methods; specific forms, procedures and even credos that those who take up the fight swear by.

From Salon • Oct. 4, 2025

“It’s the truth, Mata! I swear by Jupiter!”

From "Tiger, Tiger" by Lynne Reid Banks