Yacht looks mismatched because English borrowed it from Dutch, kept much of the spelling, and gradually changed the pronunciation.
schedule
Conceit vs. concept: what is the difference?
Conceit is an elaborate literary comparison. Concept is a general idea or plan. Here is how to tell them apart quickly.
Nauseated vs. nauseous: what is the difference?
Nauseated usually means feeling sick. Nauseous traditionally means causing nausea, though many speakers now use it for feeling sick too.
Advanced Prepositional Patterns and Fixed Phrases Exercise
Advanced Prepositional Patterns and Fixed Phrases Exercise . Level: C2
Discourse Markers: Structuring an Argument Exercise
C1 . Discourse Markers: Structuring an Argument

