+0
I looked up manifest in the dictionary; it says to show something clearly, through signs or actions
The workers chose to manifest their dissatisfaction in a series of strikes.
The illness first manifested itself in/as severe stomach pains.
Lack of confidence in the company manifested itself in a fall in the share price.

Can I replace manifest in the above sentences with show?

Is there any distionction between show and manifest?

.
+0
I think "show" lacks the active part you find in "manifest". I'd say it can be OK in the first example, but I wouldn't use it in the next two. But then I'm not a native, so wait for further advice... Emotion: smile
+0

I think you can use show in these sentences.
--------------
This is a good dictionary for such issues:

http://www.m-w.com/dictionary/show

Go to the synonym section of the page for show (as a verb) and they tell you the differences there.

Also, consider the definitions and examples at:
http://www.answers.com/manifest
http://www.answers.com/show
they are very good.
Under show here, look at
Directory > Words > Thesaurus

show also show up
entry, you'll see that they are synonymical only for the meaning:
---------
show

....

7.
To make manifest or apparent: demonstrate, display, evidence, evince, exhibit, manifest, proclaim, reveal. See show/hide.

while show has 10 or so meanings, which are listed there and you must learnEmotion: smile
1. To make visible; bring to view
2. To come into view
etc.
----------

Teachers: We supply a list of EFL job vacancies
Comments  
The cases that result in "show itself" are not as idiomatic as the first case, but the replacement can be done.

CJ
Students: We have free audio pronunciation exercises.