() — to surge, to dash (of water, emotions); to arouse, to stimulate, to excite

Definition

Usually appears in compounds (激动, 激发, 激活) rather than alone. The first meaning is water or emotions surging; the second is arousing or stimulating something like enthusiasm or a system.

verb
to surgeto dash (of water, emotions)to arouseto stimulateto excite

Examples

  • Hǎi làng jī qǐ le gāo gāo de shuǐ huā.
    The waves surged up high spray.
  • Tā de yǎn jiǎng jī fā le dà jiā de ài guó rè qíng.
    His speech aroused everyone's patriotic enthusiasm.
  • Zhè zhǒng yào kě yǐ jī huó rén tǐ de miǎn yì xì tǒng.
    This medicine can activate the body's immune system.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
Written in full asshuǐwater
Sound part声符shēngfú
jiǎo
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

In 激, the 氵 side marks water, and 敫 gives the sound jiǎo; the original sense is water swashing.

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