a word with a meaning that is opposite to the meaning of another word
a word that has the same meaning as another word in the same language
a word, name, or phrase that very strongly suggests a particular idea, quality, etc.
In the following 18 common words with antonym pairs, for two cases, I list "ordinary/normal" for antonyms, as those antonyms are somewhat synonymous with each other.
While I jotted down words and antonyms, a few related word ideas popped up. Because I don't foresee writing up a separate blog article for them separately or collectively, I'm including these miscellaneous thoughts here.
scan: visually skim vs. using a machine to read an image
round shape: circle (2D) vs. sphere (3D)
2D confusion—pane vs. panel
From "Re: Pane or Panel ?":
A pane is a (usually) independently scrollable subsection of a window. It's what you get, for example, if you drag the splitter bar in a Word window.From "window pane/panel":
A panel is an object that is used to group controls and other objects. It is often but not always dragable, occasionally resizable or scrollable. Most toolbars, for example, consist of a panel with buttons. Panels may or may not have a visible border.
Example: your window is 2 meters in width. The curtains come in 0.5m panels. You will need to buy four panels to cover the window with curtains.As a final thought, I suggest a practical colloquialism to replace "practicable"—"doable". Although "practicable" seems to have finer granularity for definitions, I myself prefer "doable". BTW, I avoided using either word in technical writing.
Panels are made of fabric. Panes are made of glass.
October 5, 2015 Update
In a discussion about this article on the Publishing and Editing Professionals LinkedIn Group, a commenter pointed out that my 18 words are actually homonyms. Sure enough, one Merriam-Webster definition is "one of two or more words spelled and pronounced alike but different in meaning".
One of the other definitions is "homophone". Merriam-Webster's definition for "homophone" is "a word that is pronounced like another word but is different in meaning, origin, or spelling". Note the additional condition, "spelling". Thus, homophones are a special kind of homonym that often trips up people when they use the incorrect soundalike. And spell checkers don't even flag such words because they're real words.