Crossword puzzle clue "go on to signal"

Here are the possible solutions for go on to signal clue

Answer
Clue
Relevancy
acab
Clue
Hail ___ (signal the taxi driver): 2 wds.
ache
Clue
Distress signal
Distress signal?
Definition
to endure a dull lasting pain, also AKE
added
Clue
Value-___ (term that may signal a price hike)
Definition
ADD, to compute the sum of
ahoy
Clue
Nautical signal
Definition
an interjection used to hail another vessel
airalert
Clue
Wartime signal
Sortie signal
Signal to pilots

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