Adverb
Verb (する)
Usually written in kana
1. motionlessly (e.g. stand, wait); (be) still
2. fixedly (e.g. gaze, stare); intently (e.g. listen, think)
じっと彼女の黒い瞳を見つめる。I gaze fixedly at her black eyes.
Adverb
Usually written in kana
3. patiently (e.g. endure); stoically
そうだ、こうやってじっと我慢していよう。That's right, let's just endure this patiently.
4. firmly (e.g. hold); restrained