You can access Spell Check Options and Dictionaries in two ways:
From the Edit menu, select Preferences. At the bottom of the left column, click Spell Check. An Options button and a Dictionaries button appear.
Start Spell Check. When EndNote detects a misspelled word, the Spell Check dialog appears. An Options button and a Dictionaries button are available on the dialog.
For information about the Spell Check Options and Dictionaries preferences, including a list of dictionaries supplied with EndNote, see Spell Check Preferences.