1. The choicest or most essential or most vital part of some idea or experience
   "the heart and soul of the Republican Party"
   - kernel, substance, core, center [US], centre [Brit, Cdn], essence, gist, heart, inwardness, marrow, meat, nub, pith, sum, nitty-gritty

1. With complete faith
   "she was with him heart and soul"
   - body and soul

Type of: cognitive content, content, mental object

Encyclopedia: Heart and soul

• regular recurrence
• regular tetrahedron
• regularisation
• regularise
• regularity
• regularization
• regularize
• regularly
• regulate
• regulated
• regulating
• regulation
• regulation time
• regulative
• regulator
• regulator gene
• regulatory
• regulatory agency
• regulatory authority
• regulatory gene
• regulatory offence
• regulatory offense
• regulo
• Regulus
• Regulus calendula