- concentration, engrossment, absorption, immersion - complete attention; intense mental effort
--1 is a kind of attention
--1 has particulars:focus, focusing, focussing, direction, centering; specialism; study Derived forms: verb engross1, verb engross2 - preoccupation, preoccupancy, absorption, engrossment - the mental state of being preoccupied by something
--2 is a kind of cognitive state, state of mind
--2 has particulars: abstractedness, abstraction; absentmindednessDerived forms: verb engross1, verb engross2 - intentness, engrossment - the quality of being intent and concentrated; "the intentness of his gaze"
--3 is a kind of assiduity, assiduousness, concentration
Derived forms: verb engross1, verb engross2