ETYM AS. beorhines. Related to Bright.
The perceived quality of radiance or luminosity of a visible object. Brightness is literally in the eye (and mind) of the beholder; a candle in the night appears brighter than the same candle under incandescent lights. Although its subjective value cannot be measured with physical instruments, brightness can be measured as luminance (radiant energy). The brightness component of a color is different from its color (the hue) and from the intensity of its color (the saturation). See also color model, HSB.
1. Intelligence as manifested in being quick and witty; SYN. cleverness, smartness.
2. The location of a visual perception along the black-to-white continuum.

ETYM Latin claritas, from clarus clear: cf. French clarté.
Free from obscurity and easy to understand; the comprehensibility of clear expression; SYN. lucidity, pellucidity, clearness, limpidity.

ETYM Cf. French lucidité. Related to Lucid.
A lucid state of mind; not confused.

ETYM Latin perspicuitas: cf. French perspicuité.
Clarity as a consequence of being perspicuous; SYN. perspicuousness, plainness.

ETYM Cf. French précision, Latin praecisio a cutting off. Related to Precise.
The quality or state of being precise; exact limitation; exactness; accuracy; strict conformity to a rule or a standard; definiteness.
Precision is reproducibility. SayingThese measurements are precis is the same as saying,The same measurement was repeated several times, and the measurements were all very close to one anothe. Don’t confuse precision with accuracy.

ETYM French simplicité, Latin simplicitas. Related to Simple.
1. A lack of penetration or subtlety; SYN. simple mindedness.
2. Absence of affectation or pretense.
3. The quality of being simple or uncompounded; SYN. simpleness.