Look up this word
muscle

In a sentence
Jim si pri lyžovaní natiahol sval na nohe.
Jim pulled a muscle in his leg while skiing.
Toto je sval.
This is a muscle.
Practice frame
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Includes Tatoeba example sentences when present.
Full attribution on References.