keen sense

• acuteIntensely severe or perceptive
• sharpFine-edged, or astute
• perceptiveQuick to understand
• intuitiveKnown without reasoning
• awarenessState of perceiving reality

instinct · alert · attuned · sensitive · discerning · observant · heightened · razor · detection · smell · hearing · taste · sight · touch · antenna · predator · hunter · vigilant

• dog traitsloyal, friendly, loyalty, devoted, playful
• idiomstime flies, hit the sack, seize the day, ring a bell, break a leg
• sensitivitysensitivity, sensitive, hypersensitivity, oversensitivity, hypersensitive