signal
/ˈsɪgnəl/ noun [C]
ACTION › a movement, light, or sound which gives information, or tells people what to do işaret, sinyal
At a signal from their teacher, the children all held up their flags. Don't move until I give the signal.121316952431 WAVE › a series of electrical waves which are sent to a radio, television, or mobile phone radyo/televizyon sinyali
2431 PROOF › something which shows that something else exists or is likely to happen gösterge, işaret, belirti, emare
The changing colour of the leaves on the trees is a signal that it will soon be autumn.1213 TRAINS › a piece of equipment which tells trains to stop or to continue demiryolu sinyalizasyon sistemi
1676 VEHICLES/PEOPLE US › a piece of equipment that shows people or vehicles when to stop, go, or move carefully trafik işaretleri
a traffic signal 12131695