fluent, proficient, skilled / healthy

street

diesel powered train

wrestling

A transliteration of the Spanish male given name Carlos / A transliteration of the Portuguese male given name Carlos

screen of a computer, television, movie theater, etc.

straight (direct in speech; blunt) / straight (unbent; or often of hair, uncurled) / straight (heterosexual)

directness / the state of being unbent / (baseball, softball) a fastball / (poker) a straight

(pathology, microbiology, virology, dated) Alternative form of ウイルス (uirusu, “virus”)

mathematician