Main definitions of -in in English

: -in1-in2

-in1

suffix

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

    ‘insulin’
    ‘penicillin’
    ‘dioxin’

Origin

Alteration of -ine.

Pronunciation

-in

/ɪn/

Main definitions of -in in English

: -in1-in2

-in2

suffix

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

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

Pronunciation

-in

/ɪn/