edge
part of speech
noun (edge, edges); verb (edge, edges, edged — to move slowly or to make a border)
meaning for a pupil
1) An edge is the outside line or end of something, like the edge of a table or a cliff. tree →
2) An edge of a solid shape is the line where two faces meet. A cube has 12 edges. tree →
3) The edge of a knife is its sharp side. tree →
4) To edge is to move slowly and carefully. tree →
5) «On edge» means nervous. tree →
sense in the lessons
maths: edges of shapes counted (a cube has 12, a triangular prism 9), or the border around something, as in perimeter; along an edge means the length around; science: the edge of a forest or pond, where habitats meet; everyday life and safety: stay away from the edge of the platform, cliffs and pools; stories: on the edge of a cliff
examples
- A cube has 12 edges. tree →
- She put a ribbon along the edge of the table. tree →
- How many edges does a triangle prism have? tree →
- Plant a tree every 2 meters along the edge. tree →
- Stand back from the edge of the platform. tree →
- The knife has a sharp edge. tree →
- He edged along the narrow wall. tree →
- The cat sat on the edge of the bed. tree →
- The Goat looked over the edge of the cliff. tree →
note
Fixed numbers for solids; along an edge means the length around (perimeter). Trap: a cube has 12 edges but 8 corners and 6 faces. Trees along an open edge need one more than the gaps.
In the corpora
- Owl wing feathers have comb-like front edges, soft fringes and a velvety surface that muffle the sound of flying.
- A flamingo feeds with its head upside down in the water, filtering tiny food through comb-like edges of its bill.
- A small pond without fish, with gently sloping edges, gives them their best chance.
- Hold a great white tooth in your hand: a triangle with saw edges.
- Cutting toenails straight across helps stop ingrown toenails, where the edge grows into the skin and can get sore and infected.
Trees and pragmatics
Every meaning and example of «edge» parsed by Mova, each sentence with its dependency tree and frames.