1. In an exhaustive manner
   "we searched the files thoroughly"
   - exhaustively 
2. Completely and absolutely ('good' is sometimes used informally for 'thoroughly')
   - soundly, good

See also: thorough

• phenyl salicylate
• phenylacetamide
• phenylalanine
• phenylamine
• phenylbutazone
• phenylephrine
• phenylethylene
• phenylic acid
• phenylketonuria
• phenylpropanolamine
• phenyltoloxamine
• phenytoin
• pheochromocytoma
• pheresis
• pheromone
• phew
• phi
• phi coefficient
• phi correlation
• phial
• Phidias
• Phil Anderson
• Philadelphaceae
• Philadelphia
• Philadelphia fleabane