Sintered body and cutting tool

A sintered body comprising:

• a first hard particle containing TiCN as a main component;
• a second hard particle containing, as a main component, Ti, M, C, and N, wherein M represents one or more elements selected from group 4 to group 6 elements (excluding Ti element) in a periodic table;
• a third hard particle including a core portion containing TiCN as a main component, and a peripheral portion enclosing the core portion and containing, as a main component, Ti, M, C, and N, wherein M represents one or more elements selected from group 4 to group 6 elements (excluding Ti element) in the periodic table;
• a particle containing at least one of AlN, Al2O3, ZrO2, SiC, and Si3N4 as a main component;
• and
• a binding phase containing at least one of Co and Ni, wherein
• the binding phase
• further contains at least one of Re and Ru, and
• has a thickness of not greater than 5 nm at at least a part of a grain boundary between the third hard particles adjacent to each other, and
• at least one of the third hard particles
• has, in the core portion, a particle containing at least one selected from Co, Ni, Re, and Ru, and
• has at least one dislocation in each of the core portion and the peripheral portion.