辞彙 is read as じい (jii) and means glossary.
じい
jii
じにん
resignation (from a position)
じしょく
resignation
じてん
dictionary
じしょ
letter of resignation
じたい
declining
やめる
to resign
じひょう
intention to resign
じす
to decline
じれい
notice of personnel change (appointment, dismissal, etc.)
じせい
dying words
じりん