All 5 Uses

tentative
in
The Guardian, by Nicholas Sparks
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Julie stepped forward tentatively, and when Mike didn't back away, she came closer and leaned into him.
Chpt 33 *

tentatively = in an unsure or hesitant manner
The word came out tentatively.†
Chpt 22
They took a tentative step, and the crowd started to part.†
Chpt 27
Mike put a hand on Julie's shoulder and took a tentative step toward the door.†
Chpt 27
She offered a tentative smile that gradually gave way to a look of concern when it became obvious that Andrea wasn't answering.†
Chpt 31

Definitions:

(1) (tentative as in: said it tentatively)
done in a careful or unsure way (indicating a lack of confidence in exactly what will happen)
(2) (tentative as in: a tentative plan)
subject to change (likely or possibly going to change)
(3) (meaning too rare to warrant focus)