M-s h .
(hi-lock-face-symbol-at-point
)Highlight all occurrences of symbol at point.
M-s h r
(hi-lock-face-buffer
)Highlight all occurrences of regexp.
With active region, read its content as input.
M-s h s
(my-hi-lock-face-string
) customHighlight all occurrences of string.
With active region, use its content as input.
M-s h u
(hi-lock-unface-buffer
)Un-highlight at point.
Prefixed with C-u
, remove all highlights.