tracking

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun the pursuit (of a person or animal) by following tracks or marks they left behind
verb carry on the feet and deposit
verb observe or plot the moving path of something

I saw the form of a man tracking. — The Red True Story Book, Unknown
"Tracking and poling, pretty soon now, and a fine daily average," nodded Rob. — The Young Alaskans on the Missouri, Emerson Hough
Subsequent work, together with equipment, double tracking, and the building of additional lines, has doubled the first cost. — Wealth of the World's Waste Places and Oceania, Jewett C. (Jewett Castello) Gilson

trailing

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