Related Clues:
- Ltr. insertion
- Shelf-filling bks
- Abbr. at the bottom of an application
- Clickbait site, as of Sep. 2016
- Acronym for a world class dictionary
- Voluminous British lexicological work (abbr.)
- "Clickbait" was added to it in Sep. 2016
- Reference wk. that added 'YOLO' in 2016
- Ref. for wordsmiths
- It added ''YouTuber'' in 2016
- Letter insert: Abbr
- It added ''brr-brr'' in 2016
- Ltr. addition
- Cover letter abbr
- Bus. letter accompanier