Tachi has various meanings depending on the writing:
太刀 たちtachi (n) | – long sword |
立ち たちtachi (n) | – stand |
舘 たちtachi (loc) | – Tachi |
裁ち たちtachi (n) | – cut – cutting |
質 たちtachi (n) | – nature (of person) – quality |
達 たちtachi (n-suf) | – plural suffix |
館 たちtachi (loc) | – Tachi |
館 たちtachi (1) (n) | – mansion – small castle |
Think about it when listening to sensei…