"signaled" in the verb sense
1. sign, signal, signalize, signalise
communicate silently and non-verbally by signals or signs
"He signed his disapproval with a dismissive hand gesture"
"The diner signaled the waiters to bring the menu"
2. bespeak, betoken, indicate, point, signal
be a signal for or a symptom of
"These symptoms indicate a serious illness"
"Her behavior points to a severe neurosis"
"The economic indicators signal that the euro is undervalued"
Source: WordNet® (An amazing lexical database of English)
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