The term 'At the same time as' can be expressed in two ways: 'WHILST' (6 letters) and 'ALONGSIDE' (9 letters). WHILST is a synonym for 'at the same time as' and is used to indicate that two or more actions are happening simultaneously. Meanwhile, ALONGSIDE is used to indicate that two or more things are happening in parallel or side by side. Both words are used to express the idea of something happening at the same time as something else.