STEPBible - Scripture Tools for Every Person - from Tyndale House, Cambridge
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Lexicons
Clicking on a word a word in a lexicon capable text1 opens the word meaning panel on the right:
Vocab gives translation equivalents.
Meaning gives contextual definitions.
LSJ is an adapted Classical Greek Lexicon.
Related words links to words with shared semantic features.
1 A lexicon capable text has the letter V after the name/code in the bibles/commentary menu.