to visit someone casually without prior arrangement
অঘোষিতভাবে বা হঠাৎ কারও কাছে যাওয়া।
"My neighbors often drop in for coffee in the evening."
"আমার প্রতিবেশীরা প্রায়ই সন্ধ্যায় কফির জন্য হঠাৎ চলে আসে।"
to grow stronger together with something or someone
to support financial or business initiatives with funding
to take precautions to avoid future risks
to keep emotions inside instead of expressing them
to make a tense or angry situation more peaceful
to remain strong and calm when under stress or pressure