swear by

listen to the pronunciation of swear by
Английский Язык - Турецкий язык
çok güvenmek
üzerine yemin etmek
-e çok güvenmek
tümüyle güvenmek
(deyim) swear by sth. (kd) çok güvenmek,inanmak
Английский Язык - Английский Язык
To wholeheartedly trust

I swear by my Petit Larousse when it comes to learning French.

If you swear by something, you believe that it can be relied on to have a particular effect. Many people swear by vitamin C's ability to ward off colds
take an oath on -; give full trust to -
swear by