The phrase "bare suggestion" refers to an idea or thought that is presented without providing any concrete details or evidence. Similar phrases or synonyms for this term include "vague hint," "slight inkling," "faint notion," "abstract concept," and "tentative proposal." These all refer to the same type of ambiguous or uncertain language that suggests a possible idea or thought without offering any real substance. When discussing a "bare suggestion," it's important to clarify whether the speaker is presenting a concrete proposal or simply offering a vague idea for consideration. Choosing the right synonym can help to convey the intended meaning more precisely.