Island can be used for Isolation. Island is related to Desert. Desert is related to Land. Land is related to Feature. 
Grip is related to Firm. Firm is a synonym of Fast. 
Isolation <--UsedFor-- Island <--RelatedTo--> Desert <--RelatedTo--> Land <--RelatedTo--> Feature 
Grip <--RelatedTo--> Firm <--Synonym--> Fast 