Definition of sandhi in US English:

sandhi

noun

Grammar
  • The process whereby the form of a word changes as a result of its position in an utterance (e.g. the change from a to an before a vowel).

    • ‘Chinese has tone sandhis whereas English tones are not lexical but attitudinal and modal.’
    • ‘Among the elements of language she liked to reduce to essentials were the compounds produced by collision or transformation in sandhi.’

Origin

From Sanskrit saṃdhi ‘putting together’.

Pronunciation

sandhi

/ˈsandē/