S: (n) quarter section (a land unit equal to a quarter of a section (160 acres) and measuring 1/2 mile on a side)
S: (n) acre (a unit of area (4840 square yards) used in English-speaking countries)
S: (n) are, ar (a unit of surface area equal to 100 square meters)
S: (n) hectare ((abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters))
S: (n) arpent (a former French unit of area; equal approximately to an acre)
S: (n) barn, b ((physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter)
S: (n) dessiatine (a former Russian unit of area equal to 2.7 acres)
S: (n) morgen (a South African unit of measure equal to about 2 acres)
S: (n) em, em quad, mutton quad (a quad with a square body) "since `em quad' is hard to distinguish from `en quad', printers sometimes called it a `mutton quad'"
S: (n) agate line, line (space for one line of print (one column wide and 1/14 inch deep) used to measure advertising)