The term 'become less hostile' can be expressed in two four-letter words: THAW and MELT. THAW is defined as to become or cause to become soft or liquid by the application of heat, while MELT is defined as to become or cause to become liquid or softer by the application of heat. Both terms are used to describe the process of reducing hostility, which can be done by applying warmth and understanding. This can be done through communication, compromise, and other forms of positive interaction.