It CHANGES word MEANING
Mutually Exclusive Context
[t] - [tʰ]: [stu:l] - [tʰu:l]
Parallel Distribution - Free Variation
[b] - [b̚]: scrub
Phonetically NOT SIMILAR
Occur in the SAME CONTEXT
NO Minimal Pairs
Minimal Pairs
[g] - [k] : bag - back
Complementary Distribution
Occur in the SAME CONTEXT but PHONETICALLY SIMILAR
Contrastive Distribution
Parallel Distribution
NEVER occur in the SAME CONTEXT
NO CHANGE in word MEANING
NO Contrastive Distribution