(obsolete) Somewhat; slightly; a little.

plural of baryonic matter

The parts of a book that appear after the main portion of the body text, including the afterword, index and bibliography; the end matter.

(followed by a phrase) Regardless, in spite of. / (not followed by a phrase) Regardless of any or most possible adverse circumstances.

it is not important; do not fret (used to reassure or comfort the person to whom it is said) / I withdraw my previous statement (often used if it wasn't heard or understood).

(physics) Any form of matter, such as a solid or liquid, in which there are strong interactions between neighbouring atoms

Alternative form of subject matter

(rare, proscribed) Nonstandard form of as a matter of fact.

plural of subject matter

Within a book, the main portion of text, excluding the front matter and back matter.