Base hit and Two-baser

Base hit noun - (baseball) the successful act of striking a baseball in such a way that the batter reaches base safely.

Two-baser and base hit are semantically related. In some cases you can replace phrase "Two-baser" with "Base hit", this phrases are similar.

Two-baser noun - A base hit on which the batter stops safely at second base.

Base hit and two-baser are semantically related. You can use "Base hit" instead a noun phrase "Two-baser".