IPA: /ˈstrɪktər/
KK: /ˈstrɪktər/
More demanding or severe in rules or standards than something else.
The new rules are stricter than the old ones.
Stricter → It is formed from 'strict' (from Latin 'strictus', meaning drawn tight or rigid) and the comparative suffix '-er' (meaning more). The word 'stricter' means more rigid or more tightly controlled than something else.
Think of something that is 'drawn tight' ('strict') and remember that 'stricter' means more tightly controlled or more rigid.