Oxford English Dictionary Blog: “This update contains nearly 700 words, senses, and phrases which have been researched, defined, and included in OED for the first time, from absolute threshold to ydraw. Absolute threshold, the level or point at which a stimulus—such as sound, touch, or smell—reaches sufficient intensity to become consciously perceptible, is a loan translation of a German phrase, first used in English in 1892. Ydraw is a verb obsolete since the fifteenth century and first recorded in Old English with reference to the sweeping of the hem of a garment. More recent linguistic developments covered in this update include burner phone, an inexpensive prepaid mobile phone, especially one used for a short time and then destroyed or discarded to protect the owner’s anonymity, first recorded in a 1996 song by rapper Kingpin Skinny Pimp, and the shortened burner in the same sense, first seen from 2002. A trigger warning, a warning before a piece of writing or other content that may cause distress, especially by reviving upsetting memories in people who have experienced trauma, is first recorded in a 1993 Usenet newsgroup for survivors of abuse. Content warning, also added in this update, is now often used in the same sense, but its other current sense—denoting a notice accompanying a film, video game, or written publication, warning that it contains material potentially offensive to some audiences or unsuitable for children—is earlier, with evidence stretching back to 1977…”