smackerooRead more in this article about some frequently asked questions and fun facts related to our definitions.
memoristRead more in this article about some frequently asked questions and fun facts related to our definitions.
watchful, cautious, respectful, wary, observant, conscious, apprehensive, conversant, cognizant, knowledgeable, vigilant, solicitous, careful, mindful, discerning, discriminating, perceptive, attentive, intelligent, prudent
- observation car,
- observation post,
Online Etymology Dictionary, © 2010 Douglas Harper