engage or engross the interest or attention of beforehand or occupy urgently or obsessively; "His work preoccupies him"; "The matter preoccupies her completely--she cannot think of anything else"
occupy or take possession of beforehand or before another or appropriate for use in advance; "the army preoccupied the hills"
state insincerely; "He professed innocence but later admitted his guilt"; "She pretended not to have known the suicide bomber"; "She pretends to be an expert on wine"
confess one's faith in, or allegiance to; "The terrorists professed allegiance to the Muslim faith"; "he professes to be a Communist"
practice as a profession, teach, or claim to be knowledgeable about; "She professes organic chemistry"
take vows, as in religious order; "she professed herself as a nun"
receive into a religious order or congregation
state freely; "The teacher professed that he was not generous when it came to giving good grades"
march aggressively into another's territory by military force for the purposes of conquest and occupation; "Hitler invaded Poland on September 1, 1939"
penetrate or assault, in a harmful or injurious way; "The cancer had invaded her lungs"
occupy in large numbers or live on a host; "the Kudzu plant infests much of the South and is spreading to the North"
know and comprehend the nature or meaning of; "She did not understand her husband"; "I understand what she means"
perceive (an idea or situation) mentally; "Now I see!"; "I just can't see your point"; "Does she realize how important this decision is?"; "I don't understand the idea"
believe to be the case; "I understand you have no previous experience?"
make sense of a language; "She understands French"; "Can you read Greek?"
direct one's interest or attention towards; go into; "The pedophile turned to boys for satisfaction"; "People turn to mysticism at the turn of a millennium"