job, profession, trade / skill / machine, device, loom

loom (weaving frame)

to be experienced

the tricks of the trade

profession, trade (practitioners of a profession collectively, those who perform a particular kind of skilled work); guild

(euphemistic) the world's oldest profession

(informal) practice makes perfect, you'll get better, you learn from your mistakes

all work is noble, no profession is without merit

horses for courses, the cobbler should stick to his last, each to their own trade, stick to what you know

plural of métier