1. (

• pantie ,
• panty ,
• scanty ,
• step-in

) short underpants for women or children (usually used in the plural) ;

1. (

• intervene ,
• step_in ,
• interfere ,
• interpose

) get involved, so as to alter or hinder an action, or through force or threat of force; "Why did the U.S. not intervene earlier in WW II?" ;

2. (

• substitute ,
• deputize ,
• deputise ,
• step_in ,

) act as a substitute; "She stood in for the soprano who suffered from a cold" ;