same kind, collect, classify, category, hedgehog
彙 centers on grouping things of the same kind: collecting, classifying, or forming a category. The hedgehog meaning is a rare, unrelated sense that does not connect to the main idea.
彙 originally depicted a hedgehog, with 彑 representing the head and spines. The modern form adds 果 below, but the historical connection between the hedgehog image and the abstract grouping meanings is uncertain.
The top 彑 looks like a spiky hedgehog, and the bottom 果 suggests fruit. Imagine a hedgehog collecting fruit of the same kind and sorting them into categories.
For イ, picture an eagle (イーグル) collecting hedgehogs and sorting them by kind: eagle -> イ, and the eagle classifies its spiky collection.
vocabulary; lexicon; lexis; terminology
active vocabulary
core vocabulary; basic vocabulary
basic vocabulary; core vocabulary
dictionary of Chinese characters
mountain mass; small mountain range; group of mountains that are not part of a large mountain range
kind; sort; type
bulletin; collection of reports
same kind or class; classification
passive vocabulary
active vocabulary
graded reader; limited-vocabulary reader
(the extent of) one's vocabulary
lexical-functional grammar; LFG
lexical
principle of lexical control; PLC
lexeme
lexicostatistics
vocabulary list
lexical rule