A delta can refer to different things:
- In geography, a delta is a landform that forms at the mouth of a river where the river flows into an ocean, sea, desert, lake, or another river. It is typically a triangular or fan-shaped area of sediment deposited at the mouth of the river
- In mathematics, specifically the Greek alphabet, delta is the fourth letter (Δ, δ). It is also used to represent a change in a variable or a difference between two values
- In the context of the video, "What is a River Delta?" it explains the formation of river deltas as a river carrying sediment reaches a body of water and deposits the sediment, causing the formation of a delta
In the context of the search results, "Delta Air Lines" is a major airline, but this is not related to the other meanings of "delta"
