:Consonant cluster:

Pronunciation GB: ˈkɒnsənənt, GA: ˈkɑnsənənt

A sequence of adjacent consonant sounds within a single syllable. Consonant clusters may consist of zero or more consonants, and may be initial or final within the syllable. Initial clusters are sometimes called onset clusters and final ones coda clusters. In the English word stops, the initial sequence st and the final sequence ps are both consonant clusters. However, the sequence ɡn in the middle of the word ignore would not be classed as a consonant cluster, because the two consonants are in different syllables.