Jump forward, backward and delete a word in iTerm2

Open iTerm2 > Preferences > Profiles (menu) > Keys (tab)

Backspace

Set your Left Option (⌥) Key to Esc+

Jump Forward

Select Key Mapping ⌥→ or click the plus icon to add a new Key Mapping if not exist, then set value like below image

• Keyboard Shortcut: ⌥→ (Press the key command: ⌥ and →)
• Action: Send Escape Sequence
• Esc+: f

Jump Backward

Select Key Mapping ⌥← or click the plus icon to add a new Key Mapping if not exist, then set value like below image

• Keyboard Shortcut: ⌥←
• Action: Send Escape Sequence
• Esc+: b