1 to insert

2 stick in

3 pierce

4 to take part in

5 to interfere

6 to interpose

1 to plug into

2 to insert

3 to stick in

1 plug-in (software component)

1 to insert

2 to stick

3 to thrust

1 illustration

1 lit. knifes piercing both sides (idiom)

2 fig. to attach a great importance to friendship, up to the point of being able to sacrifice oneself for it

1 to include impromptu comic material in opera performance (idiom); to jest

2 buffoonery

1 lit. even given wings, you couldn't fly (idiom); fig. impossible to escape

1 (idiom) (of a good outcome) unanticipated

2 serendipitous

3 fortuitous

1 lit. to see a gap and stick in a needle (idiom); fig. to make use of every second and every inch