Levelling or leveling (American English; see spelling differences) is a branch of surveying, the object of which is to establish or verify or measure the height of specified points relative to a datum.

“Leveling” and “Levelling” are both correct forms for the word that means to adjust the height or amount of something. If you speak British English, use “Levelling”.

Sep 24, 2024 · Levelling surveying ensures accurate elevation data for construction, roadworks, and drainage systems. The advantages of levelling include precise ground profiling, improved accuracy in …

Nov 19, 2024 · Levelling in surveying is the process of finding the height difference between two or more points on the Earth’s surface. It helps determine elevations so that engineers can design structures …

He seized his glass and hurried to the deck, levelling it at the shore, leaning far over the rail in his eagerness.

Aug 18, 2025 · Levelling in surveying is one of the most important techniques for determining the relative heights of points on the earth’s surface. It is essential for creating accurate maps, designing roads, …

Levelling (or Leveling) is a branch of surveying, the object of which is: i) to find the elevations of given points with respect to a given or assumed datum, and ii) to establish points at a given or assumed …

Jun 25, 2025 · Levelling involves determining the height of points relative to a reference level, usually the mean sea level. This process is essential in building and maintaining infrastructure, as it helps …

Define levelling. levelling synonyms, levelling pronunciation, levelling translation, English dictionary definition of levelling. n. 1. a. Relative position or rank on a scale: the local level of government; …

We tipped over into a swooping descent, levelling off forty metres above ground and turning towards the east. Levelling work will also be undertaken at the first fence ? Ooh, it was levelling, that's what it …