tone up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To cause to give a higher tone or sound; to give a higher tone to; to make more intense; to heighten; to strengthen.
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To firm and strengthen the muscles of the body by regular exercise.
Nghĩa · Tiếng Việt
Tăng cường và làm săn chắc cơ bắp bằng tập luyện thường xuyên
Machine-translated — suggest a fix
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “tone up” mean?
To cause to give a higher tone or sound; to give a higher tone to; to make more intense; to heighten; to strengthen.
Is “tone up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.