sharp-sightedness   (TTS Sound)

The sharp-sightedness has 2 Senses.

• acuity, visual acuity, sharp-sightedness
• 視力, 鋭さ
• sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
• 視力

• alertness, sharp-sightedness, on the qui vive
• 電光石火
• lively attentiveness
• 積極的に注意を払うこと