tap / space
Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Clipping of frobnicate, from frobnitz, coined circa 1958 by David R. Sawyer of the MIT Tech Model Railroad Club (TMRC). Year of origin uncertain, and could be 1958–1981: frob is not listed in the TMRC dictionaries of 1959 or 1960, and is first listed in the Jargon File (1981 edition), so it may date from the 1960s or 1970s. Possibly variant of or influenced by frotsus (“a protruding arm or trunnion”), which is listed in TMRC 1959 and 1960.
Type a word, a sentence, a book title, or a link to an English article. WordNet and the Classics answer.
A library of classics · a vault of words · instant etymology & meaning
Sign in to use the worksheet generator.
Upload a file or open a document first.
Sign in to see your reading-vocabulary progress.
Your ledger is waiting
Read a chapter and tap the words you meet. Every word you learn is recorded here as your reading vocabulary grows.
—
Sign in to use vocabulary.
No vocabulary lists yet.
No matching vocabulary.
No words in this vocabulary yet.
Click a word in the Reader to add it.
Sign in to use bookmarks.
No bookmarks saved yet.
No matching bookmarks.
Sign in to save and open your own documents.
No saved documents yet.
Open a file or URL in the Reader, then use “Save to My Docs”.
No cards due — add words to a list.
Loading…
tap / space
Classic usage
No cards due — add words to a list.
Loading…
Building today's round…
Recent books: 0 books
Verbault — Brown corpus levels, WordNet definitions, Gutenberg corpus.
Pick a puzzle source to start.
Sign in to use this source.