sentinel. n. 1. a person, such as a sentry, assigned to keep guard. 2. (Computer Science) computing a character used to indicate the beginning or end of a particular block of information. vb (tr) , -nels, -nelling or-nelled.
1 Victory Sign is a full-service sign company. We specialize in all aspects of the sign industry from survey and permitting, fabrication, installation and service. 2  We are a small company, but pride ourselves on quality workmanship and reasonable prices. We are fully insured and provide our customers with free estimates.
A stop sign is the only sign that uses this shape. An upside down triangle road sign always means âyield.â Diamond-shaped road signs always warn of possible hazards ahead. These are traffic signs, temporary traffic control signs, and some pedestrian and bicycle signs. Pennant-shaped road signs warn drivers of no passing zones. Round-shaped road signs are used for railroad signs. When you see a round traffic sign, you will likely see a railroad crossing or light rail transit crossing signs ahead.