An "agreement to end/cease/suspend hostilities" can have various synonyms in different contexts and situations. In the political and military arena, it could be referred to as a "ceasefire," "truce," or "armistice." In diplomatic language, it may be called a "peace deal," "settlement," or "accord." In legal terms, it may be known as a "settlement agreement," "conciliation," or "treaty." Other synonyms that can be used for an "agreement to end/cease/suspend hostilities" are "disarmament," "surrender," "detente," "peace process," "negotiations," "pact," or "reconciliation." The choice of word may depend on the level of hostility, the parties involved, and their intentions towards reaching a resolution.