How to Spell vacuum
vacuum
//ˈvæ.kjuː.əm//
vacuum - noun
- A region of space that contains no matter.
- (plural only "vacuums") A vacuum cleaner.
- The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.
- A spacetime having tensors of zero magnitude
Source: Free Dictionary API
Not sure what level your child is at?
Take the free 6 minute placement test.