
andeuten
to hint at
To not say something directly, but to make it understood only indirectly or through a gesture.
Er hat nur angedeutet, dass er mit der Entscheidung nicht einverstanden ist.
He only hinted that he did not agree with the decision.
to hint at / to indicate
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to hint at
To not say something directly, but to make it understood only indirectly or through a gesture.
Er hat nur angedeutet, dass er mit der Entscheidung nicht einverstanden ist.
He only hinted that he did not agree with the decision.

to become apparent
To become recognizable or likely; the first signs of a future development appear.
Es deutet sich an, dass die Verhandlungen erfolgreich sein werden.
It is becoming apparent that the negotiations will be successful.
'Andeuten' is a separable verb with the prefix 'an-'. In a main clause, the prefix goes at the end of the sentence.
Sie deutete nur vage an, was passiert war.
She only vaguely hinted at what had happened.
What someone hints at is very often expressed in a subordinate clause with 'dass' (that) or an indirect question.
Der Chef deutete an, dass es bald Veränderungen geben wird.
The boss hinted that there would soon be changes.
In the meaning 'erkennbar werden' (to become apparent), the verb is always used reflexively: 'sich andeuten'. The subject is often impersonal ('es') or an abstract thing (a solution, a problem).
Es deutet sich eine Wetterbesserung an.
An improvement in the weather is becoming apparent.
to signal
Both verbs describe conveying a message indirectly through words, gestures, or signs. Andeuten means deliberately leaving the content only partly clear. Signalisieren places more emphasis on the perceptible sign through which information or an intention is conveyed; for a cautious statement, andeuten is often the better choice.

Die Sprecherin deutete nur an, dass sie mit dem Vorschlag einverstanden war.
The speaker only hinted that she agreed with the proposal.
Die Sprecherin signalisierte durch ein Nicken, dass sie mit dem Vorschlag einverstanden war.
The speaker signaled by nodding that she agreed with the proposal.