The phrase "burden of care" refers to the responsibility one has to care for another individual or dependant. Some synonyms for this expression include "responsibility of caregiving," "duty of care," and "obligation to provide support." Other synonyms for "burden" that could be used in this context include "load," "weight," or "responsibility." It is important to recognize the challenges that come with caring for others and to seek support when needed. Those who take on the "burden of care" often do so out of love and compassion, but it is crucial that they take time for self-care and seek help to prevent burnout.