1. To speak in a loud and forceful way, often in a theatrical or oratorical manner. This is the most common meaning and often implies trying to persuade or impress an audience.
* Example: The politician declaimed his passionate speech about the need for reform.
2. To recite or deliver a speech or poem in a formal and dramatic way. This is related to the first meaning but specifically emphasizes the performance aspect.
* Example: The actor declaimed the Shakespearean sonnet with great emotion.
3. To criticize or condemn something forcefully. This meaning is less common but still valid.
* Example: The judge declaimed the defendant's actions as a betrayal of public trust.
In general: "Declaim" implies a sense of passion, emphasis, and often, a desire to be heard and understood.