i+1
Word Rarity
Common
Frequency: Zipf frequency 5.97 in modern English
1
Scrabble Score
1
Letters
1
Syllables
1
Unique Chars
Meaning
adj
Containing only a single word unknown to the listener or reader.
Example Sentences
Etymology
Ostensibly coined by Stephen Krashen in his Explorations in Language Acquisition and Use in 2003; but possibly earlier. Originally, referred to a subsequent word (the 1) added to an existing vocabulary of i words, i.e. the i+1th word learned by the learner.