✅ A shameful act is one that brings disapproval from others, it’s always negative but in time it could be forgotten, maybe even forgiven (My cousin's shameful behavior embarrassed our entire family).

✅ An ignominious act is so shameful and disgraceful that it brings public attention and outcry, something not as easily forgotten (The ignominious dealings were uncovered and ended the politician's career).

✅ Both words describe something that brings disapproval and dishonor.

✅ Shameful can refer to any act or behavior that causes personal disgrace, while ignominious is often used to describe public and humiliating failures (The shameful lie hurt the mayor's credibility; The ignominious fall from grace was widely reported).

✅ A window is an opening in a wall, roof, or door that is fitted with glass or other transparent material to admit light or air and allow people to see out (She looked out the window to watch the sunset).

✅ A casement refers specifically to a window that is hinged at the side and opens outward or inward like a door (The casement allowed fresh air to flow into the room).

✅ Both words describe openings in buildings that allow light and air to enter.

✅ Window is a general term for any kind of glazed opening, while casement refers to a specific type of window that is hinged and can swing open (The window provided a view of the garden; The casement was perfect for catching the breeze).

✅ Solely means only or not involving anyone or anything else (She was solely responsible for the project).

✅ Exclusively means limited to only one person, group, or thing (This offer is exclusively for members).

✅ Both words mean limited to one person or thing.

✅ Solely emphasizes single responsibility or involvement, while exclusively often implies special access or privilege (He solely handled the arrangements; The club is exclusively for VIPs).