Meaning of “delta” in the English Dictionary

"delta" in British English

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(Definition of “delta” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"delta" in American English

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deltanoun [ C ]

us /ˈdel·tə/

an area of low, flat land, sometimes shaped approximately like a triangle, where a river divides into several smaller rivers before flowing into the sea:

the Mississippi delta

(Definition of “delta” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"delta" in Business English

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deltanoun [ S ]

uk /ˈdeltə/ us

GRAPHS & CHARTS a change in a figure or amount

FINANCE the measurement of how the price of an option changes compared to the price of the shares, etc. that it is based on:

A delta of 0.5 means that for every $1.00 that the stock goes up, the option price rises by $0.50.

(Definition of “delta” from the Cambridge Business English Dictionary © Cambridge University Press)