Where there's a choice of words for something, and one is capable of being misinterpreted due to multiple meanings, OSM tends to pick the other - hence "sidewalk" is used rather than "pavement", despite the latter being the regular British English term (for historical reasons British English has tended to be used in OSM).
"pound" isn't a good choice for these features; there are too many other different things using the same word.  Compare https://taginfo.openstreetmap.org/search?q=pound#values and https://taginfo.openstreetmap.org/search?q=pinfold#values .