Rat-tat-tat and Rat-a-tat

Rat-a-tat and rat-tat-tat are semantically related. In some cases you can replace phrase "Rat-a-tat" with "Rat-tat-tat", this phrases are similar.

Rat-a-tat noun - A series of short sharp taps (as made by strokes on a drum or knocks on a door).

Rat-tat-tat and rat-a-tat are semantically related. Sometimes you can replace phrase "Rat-tat-tat" with "Rat-a-tat", this phrases are similar.