关爱 (guān ài) means 'to care for with affection' — it combines 关 (concern) and 爱 (love), so it implies a warm, loving care. It is stronger and more emotional than 关心 (guān xīn 'to care about'), which is everyday concern; and less formal than 关怀 (guān huái), which is often used for official or institutional care.