pycrossword lets you look up and use suggestions for any incomplete word (having at least one blank letter). Suggested words are retrieved from the active Word sources.
To show suggestions for the selected word, choose Edit > Suggest word, or press the button on the Toolbar, or use the Ctrl + F hotkey.
The suggestions will be shown in a separate dialog:
Fig. 3.7.1.1.1. Word lookup (suggestions) dialog
Selected word
The selected word. Since it contains blanks, its pattern looks as follows: "_a_". Found suggestions match this pattern.
Check this box to truncate the found suggestions by the max threshold value. This value is set in Settings > Sources > Source management > Constrain max results.
When unchecked, no truncation will be applied and all the results will be displayed in the list.
If you select a suggested word in the list and press the OK button at the bottom of the dialog (or double-click the suggested word), that suggestion will be put into the crossword grid replacing the selected word. If you press the Cancel button, no changes will be made to the crossword.