The English Go term 'wedge' has two meanings, though the meaning is usually clear in context:
There are many wedge variants.
A move wedging between two enemy stones.
A warikomi is often a tesuji used to create cutting points, separate the opponent's stones, or connect your own stones. For example:
I was taught that it is to your disadvantage to play between two stones separated by 1 space. I followed this rule to discover later that this is not always true and as the stones appear on both sides of the one-point jump formation you have to consider seriously a probability of a cut. At some point the motto of the day was "Check your connections".
Get good connections, trust your connections but check them.
- Angle wedge
- Wedge in invasions
- Weird and Wonderful - Volume 1 - Extraordinary Moves by Professional Go Players: this book includes a chapter titled "Wonderful Wedges" that features several wedges that were played in symmetrical shapes by professional players, among which the famous wedge allegedly played by Dosaku against Pechin Hamahiga in 1682.