てことは

Forms

• ということは: the full form (neutral; writing and careful speech)
• ってことは: casual spoken
• てことは: very casual spoken

Common patterns

• てことは、〜ってこと？ (so that means ~, right?)
• てことは、〜だね (so that means ~, huh)
• てことは、〜わけだ (so in other words, ~)

Usage

Sentence- or clause-initial. The speaker takes what was just said and draws a conclusion or asks for confirmation.

Similar words

• つまり: in other words, that is to say (neutral)
• じゃあ: then, in that case (casual; moves on rather than drawing an inference)