Here are some useful commands and bindings for making use of vim's spell checking:
:set spell enables spelling checking
:set spell
]s and [s navigates between misspelled words
]s
[s
z= brings up a list of suggestions to replace a misspelled word
z=
Calling z= with a count (i.e. 1z=) will select that suggestion without prompting.
1z=
Source: :h spell
:h spell
Last updated 4 years ago