What does «certero» mean in Spanish?

Skilled, dexterous.
Right on target, sure to hit the mark.

Examples of use in Spanish: "tiro certero".

"arma certera".
Right, well informed.

Examples of use in Spanish: "juicio certero".

"este periodista siempre da opiniones certeras".

"fue una decisión certera".

"usted ha sido muy claro y certero".
(no es bien certero quien carga delantero) Proverb that declares the clumsiness of the one who is given to drink.