Search 145k+ English words connected to each other by meaning (same, similar, opposite ..) expandable at will, and presented as a nice mind map.
This will help your creativity for research on terms, wordings, and texts, but not much on technical solutions finding (Ex: “metals” will not list all metals)
One of the rarely paid services that we recommend in this directory, as the demo is great and already very useful.
Paid, No registration, No Download/Install required