decide on
PHRASAL VERB
If you decide on something or decide upon something, you choose it from two or more possibilities.
After leaving university, Therese decided on a career in publishing.
decided
ADJ-GRADED: ADJ
Decided means clear and definite.
They got involved in a long and exhausting struggle and were at a decided disadvantage in the afternoon.
He's a man of very decided opinions.
decidedly
ADV-GRADED: ADV
Decidedly means to a great extent and in a way that is very obvious.
He admits there will be moments when he's decidedly uncomfortable at what he sees on the screen.
Representatives of the other branches adopted a decidedly different view.
It soon became clear that authors were decidedly in the majority.
decide on
PHRASAL VERB
If you decide on something or decide upon something, you choose it from two or more possibilities.
After leaving university, Therese decided on a career in publishing.
decided
ADJ-GRADED: ADJ
Decided means clear and definite.
They got involved in a long and exhausting struggle and were at a decided disadvantage in the afternoon.
He's a man of very decided opinions.
decidedly
ADV-GRADED: ADV
Decidedly means to a great extent and in a way that is very obvious.
He admits there will be moments when he's decidedly uncomfortable at what he sees on the screen.
Representatives of the other branches adopted a decidedly different view.
It soon became clear that authors were decidedly in the majority.
<html><body>
<dt>decide on<dt><dd>
<p>PHRASAL VERB</p>
<p>If you decide on something or decide upon something, you choose it from two or more possibilities.</p>
<p>After leaving university, Therese decided on a career in publishing.</p></dd>
...
</body></html>