AWS

Automatic Warning System. Device used in locomotives of the British Railways network in the early 1950s. Worked by permanent and electromagnets, it sounds a bell in the cab if the signal is green (or semaphore distant signal clear) and a horn if the signal is double yellow, single yellow, or red (or semaphore distant signal at caution).

When the horn sounds, the driver has about 3 seconds to press the cancelling button or the brakes will apply.

Newer versions of the system are now in operation (ATP and TPWS) but the principle is much the same and helps to prevent a SPAD. (Signal passed at danger).

This line had AWS equipment fitted 48 years ago and it is still in use today.

by Kev in hants September 15, 2007

Aw man...

A series of words that are said after seeing a creeper.

Creeper...Aw man...

by Soupisbeingcrafted September 16, 2019

aw tysm

means "aw thank you so much" but when siri or text to speech says it, it sounds like autism.

Person 1 " you look nice today"
Person 2 "aw tysm"
Person 1 " did you just say autism?"

by IEnjoyCinnamon February 4, 2021

Aw Jeez

that one thing you say to your grandpa when you don't wanna go on adventures

Aw Jeez Rick,

by gr0ndz. March 21, 2020

aw narts

when something happens that is unfortunate and you feel the need to express it using a term like aw narts. similar to "aw man" but narts is cooler.

*stubs toe*
"AW NARTS"

by chickachicachickadinna June 1, 2016

awe-tistic

To be so profoundly in Awe, you are unable to respond; an Autism-positive definition.

Looking at the condors flying past a double rainbow on the north rim of the Grand Canyon, the chatty group was struck awe-tistic, thus could not speak as the birds with their nine foot wings swooped low over their heads.

by RangerGeek January 8, 2017

Aw, shucks

An expression said in response to receiving a compliment. Indicates a feeling of modesty as well as gratitude.

-You are the most beautiful woman in the world!
-Aw, shucks!

by Kimmita May 23, 2016