2.NounEllipsis of building and manufacturing trades (“the vocations of skilled blue-collar workers; the workforce in these vocations”).
"He decided to go into the trades because in the 21st century it seemed like a safer career move, in terms of wage rates, than becoming just another mediocre college graduate among a sea thereof."
3.NounEllipsis of trade publications (“publications within an industry or group of related industries, reporting industry-related news and editorials (and usually also advertising) to people in those vocations (workers and managers)”).
"Rumors about layoffs are all over the trades."
4.NounEllipsis of trade winds (“steady winds blowing from east to west above and below the equator”).
"They rode the trades going west."
5.Verbthird-person singular simple present indicative of trade