Source: http://libguides.csufresno.edu/content.php?pid=24538&sid=177093

Source of source: https://www.msu.edu/~jdowell/135/transw.html

Transitions are phrases or words used to connect one idea and are used by the writer to help the reader progress from one significant idea to the next. Transitions also show the relationship within a paragraph (or even within a sentence) between the main idea and the support the author gives for those ideas

Here are four types of transitions:

1.  Additive:  addition, introduction, similarity to other ideas

• Addition:  indeed, further, as well (as this), either (neither), not only (this) but also, (that) as well,  also,  moreover, what is more, as a matter of fact, and, furthermore, in addition (to this), besides (this),  to tell you the truth, or, in fact, actually, to say nothing of, too,  let alone, much less,  additionally, nor, alternatively, on the other hand, not to mention (this)
• Introduction:  such as, as, particularly, including, as an illustration, for example, like, in particular, for one thing,  to illustrate, for instance, especially, notably, by way of example
• Reference: speaking about (this), considering (this), regarding (this), with regards to (this),  as for (this), concerning (this), on the subject of (this), the fact that 
• Similarity:  similarly,  in the same way,  by the same token,  in a like manner, equally,  likewise      
• Identification:  that is (to say), namely, specifically, thus,  
• Clarification:  that is (to say), I mean, (to) put (it) another way,   in other words

2.  Adversative: signal conflict, contradiction

• Conflict:   but, by way of contrast, while, on the other hand, however, (and) yet, whereas, though (final position), in contrast,   when in fact, conversely,   still
• Emphasis:  even more, above all,   indeed,   more importantly,   besides
• Concession:  but even so, nevertheless, even though, on the other hand, admittedly, however,   nonetheless, despite (this), notwithstanding (this), albeit, (and) still, although, in spite of (this),   regardless (of this), (and) yet, though, granted (this), be that as it may,  
• Dismissal:  either way, whichever happens, in either event, in any case, at any rate, in either case, whatever happens, all the same, in any event,  
• Replacement:  (or) at least, (or) rather, instead

3.  Causal:  signal cause/effect and reason/result

• Cause/Reason:  for the (simple) reason that, being that, for, in view of (the fact), inasmuch as, because (of the fact), seeing that, as, owing to (the fact), due to (the fact that), in that since,   forasmuch as
• Condition: on (the) condition (that),  granted (that),  if,  provided that,  in case,  in the event that,   as/so long as,  unless, given that,  granting (that),  providing that,  even if,  only if
• Effect/Result: as a result (of this), consequently, hence, for this reason, thus, because (of this),   in consequence, so that, accordingly, as a consequence, so much (so) that, so,   therefore,  
• Purpose:  for the purpose of, in the hope that, for fear that, so that, with this intention, to the end that, in order to, lest, with this in mind, in order that, so as to, so
• Consequence:   under those circumstances, then, in that case, if not, that being the case,   if so,   otherwise  

4.  Sequential: chronological or logical sequence

• Numerical:  in the (first, second, etc.) place, initially, to start with, first of all thirdly, (&c.)  to begin with,  at first,  for a start,  secondly,  
• Continuation:  subsequently, previously, eventually, next, before (this), afterwards, after (this),   then
• Conclusion:  to conclude (with), as a final point, eventually, at last,   last but not least, in the end,   finally, lastly,  
• Digression:  to change the topic, incidentally, by the way,
• Resumption:  to get back to the point, to resume, anyhow, anyway,   at any rate, to return to the subject
• Summation: as was previously stated,  so,  consequently,  in summary,  all in all, to make a long story short,  thus,  as I have said,  to sum up,  overall,  as has been mentioned,  then,  to summarize, to be brief,  briefly,  given these points,  in all,  on the whole,  therefore,  as has been noted,  hence,   in conclusion,  in a word,  to put it briefly,  in sum,  altogether,  in short,