quickening

1. An increase of speed.

   the act of accelerating; increasing the speed

2. The action of bringing someone or something to life.

   the process of showing signs of life

3. The first noticeable movements of a foetus during pregnancy, or the period when this occurs.

   the stage of pregnancy at which the mother first feels the movements of the fetus

4. Stimulation, excitement (of a feeling, emotion etc.).

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