What is the meaning of the word "slow"?

Definitions:

(of business) not active or brisk adjective
- business is dull (or slow)
(used of timepieces) indicating a time earlier than the correct time adjective
- the clock is slow
at a slow tempo adjective
- the band played a slow waltz
become slow or slower verb
- Production slowed
cause to proceed more slowly verb
- The illness slowed them down.
lose velocity verb
- move more slowly
of timepieces adverb
- the clock is almost an hour slow
without speed; 'slow' is sometimes used informally for 'slowly' adverb
- They spoke slow to be better understood.