Which term means to say or do something repeatedly?

The term that best means to say or do something repeatedly is "reiterate." This word specifically refers to the act of repeating something, often in order to clarify or emphasize a point. It implies not just a simple repetition, but a deliberate effort to make sure that the message is understood or absorbed by the audience.

In various contexts, "reiterate" might be used when someone is restating an important idea or instruction to ensure that it is remembered or fully grasped. For example, a teacher may reiterate key concepts during a lesson to reinforce learning.

While other terms such as "repeat," "retell," and "rehash" can also involve the idea of repetition, they have slightly different connotations. "Repeat" is more straightforward and simply indicates saying or doing something again without emphasizing clarity or emphasis. "Retell" usually involves recounting a story or event, focusing on narration rather than emphasis. "Rehash" often suggests going over something that has already been discussed, sometimes implying a lack of new insights or a tedious repetition. Hence, "reiterate" is the most precise choice for the act of saying or doing something again for clarity or emphasis.