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Main definitions of -in in English

: -in1-in2

-in1

Pronunciation /ɪn/

suffix

Chemistry

  • Forming names of organic compounds, pharmaceutical products, proteins, etc.

    ‘insulin’
    • ‘penicillin’
    • ‘dioxin’

Origin

Alteration of -ine.

Main definitions of -in in English

: -in1-in2

-in2

Pronunciation /ɪn/

suffix

  • Denoting a gathering of people having a common purpose, typically as a form of protest.

    ‘sit-in’
    • ‘sleep-in’
    • ‘love-in’