strong enough to withstand adverse conditions

मजबूत

English Usage: He is a tough competitor in the race.

Hindi Usage: वह दौड़ में एक मजबूत प्रतियोगी है।

to have given instruction or imparted knowledge

सिखाया

English Usage: She taught him how to play the guitar.

Hindi Usage: उसने उसे गिटार बजाना सिखाया।