Plain
Part of speech: verb
Definition: To lament, bewail.
Part of speech: adverb
Definition: Simply
Part of speech: noun
Definition: An expanse of land with relatively low relief.
Part of speech: adjective
Definition: Flat, level. Ordinary; lacking adornment or ornamentation; unembellished. Evident to one's senses or reason; manifest, obvious, clear, unmistakable. Downright; total, unmistakable (as intensifier). Honest and without deception; candid, open; blunt. Simple in habits or qualities; unsophisticated, not exceptional, ordinary. Not unusually beautiful; unattractive. Having only few ingredients, or no additional ingredients or seasonings; not elaborate, without toppings or extras. Containing no non-printing characters; ASCII code values 32 through 126.
Example sentence: Nature will bear the closest inspection. She invites us to lay our eye level with her smallest leaf, and take an insect view of its plain.
Obvious
Part of speech: adjective
Definition: Easily discovered, seen, or understood; self-explanatory.
Example sentence: The masculine spirit is under assault. It's obvious.