1. Deeply involved
   - neck-deep, up to my neck, up to your neck, up to her neck, up to our necks, up to their necks

See also: involved

• equal sign
• equal temperament
• equal to
• equal-area map projection
• equal-area projection
• equalisation
• equalise
• equaliser
• equalitarian
• equalitarianism
• equality
• equality before the law
• Equality State
• equalization
• equalize
• equalizer
• equalizing dividend
• equally
• equals sign
• Equanil
• equanimity
• equanimous
• equatability
• equate
• equating