Words, grammatical forms and meanings linked to the ontology.

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i+1 en · ADJ

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.

Meanings

1. (not-comparable, of a sentence) Containing only a single word unknown to the listener or reader.
   • Our SRS provides automatic i+1 sentence cards for optimal study.

i+1 en · NOUN

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.

Meanings

1. (uncountable) The existence of only one word unknown to the reader or listener of a sentence.
   • When enough comprehensible input is provided, i+1 is present.