step in
• become involved in a difficult situation, especially in order to help.
• "palace officials asked the government to step in"
Similar:
intervene,
intercede,
become/get involved,
act,
take action,
take measures,
take a hand,
mediate,
arbitrate,
intermediate,
step-in
adjective
• denoting a garment or pair of shoes that is put on by being stepped into and has no need for fastenings.
• "a step-in sports bra"
step-in
noun
• a pair of step-in shoes; slip-ons.
• a pair of women's briefs.
• "pink rayon step-ins"