plural of trade union

(paleontology) A type of fossil reflecting the reworking of sediments and hard substrates by organisms, rather than the physical remains of the organism itself. This includes structures such as burrows, trails, impressions, coprolites and borings.

Alternative form of trade wind

(computing) software that converts an IP address into a hostname and provides location and other information

Alternative spelling of jack of all trades

(idiomatic) One competent in many endeavors, especially one who excels in none of them.

An advantage or improvement that necessitates the corresponding loss or degradation of something else.

Alternative spelling of jack of all trades

present participle of train surf

(sports) The sport of riding on the roof, sides or back of a train.