But then, the full meaning of her words penetrated. A shudder moved through him, cold as ice.
Source: Alone, Gardner Lisa
Is there any difference between "register" and "penetrate"? Do you think "penetrate" has a connotation of a slower process of realization than "register"?Rickie had read the paper over several times, lips moving over the words, her brow furrowing before the full meaning registered