step in

Definitions of step in
  1. verb
    act as a substitute
    synonyms: deputise, deputize, substitute
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    help out by taking someone's place and temporarily assuming his responsibilities
    type of:
    replace, supercede, supersede, supervene upon, supplant
    take the place or move into the position of
  2. verb
    get involved, so as to alter or hinder an action, or through force or threat of force
    synonyms: interfere, interpose, intervene
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    meddle, tamper
    intrude in other people's affairs or business; interfere unwantedly
    encroach on the rights of others, as in trading without a proper license
    type of:
    act together or towards others or with others
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