well

adverb

in a good or satisfactory manner: Business is going well.
thoroughly, carefully, or soundly: to shake well before using; listen well.
in a moral or proper manner: to behave well.
commendably, meritoriously, or excellently: a difficult task well done.
with propriety, justice, or reason: I could not well refuse.
adequately or sufficiently: Think well before you act.
to a considerable extent or degree (often used in combination): a sum well over the amount agreed upon; a well-developed theme.
with great or intimate knowledge: to know a person well.
certainly; without doubt: I anger easily, as you well know.
with good nature; without rancor: He took the joke well.