Most growth in vocabulary knowledge comes through reading.
“Increasing the volume of student’s reading is the single most important thing a teacher can do to promote large-scale vocabulary growth.” (Naggy, Teaching Vocabulary to Improve Reading Comprehension )
And student reading with balanced instruction can be incredibly effective.
Wordi.e. assists educators with this form of vocabulary instruction --helping them to adapt classroom instruction to efficiently deal with challenging words and concepts.
Students can save words, notes and create lists to gradually build their own vocabulary database to practice with.