| Legal memo opener | 17 |
| Heading for a memo subject | 26 |
| Dictator's first words? | 27 |
| Court term | 10 |
| Concerning, on memos | 20 |
| About, memo-style | 17 |
| Regarding, on a memo | 20 |
| Office memo starter | 19 |
| Memo's heading | 18 |
| Legalistic phrase | 17 |
| Legal opening | 13 |
| Legal memo words | 16 |
| Legal memo starter, perhaps | 27 |
| Concerning, to a dictator? | 26 |
| Concerning, memowise | 20 |
| Concerning, legalistically | 26 |
| Common memo intro | 17 |
| Brief words? | 12 |
| About, on memos | 15 |
| About, memowise | 15 |
| About, in legal memos | 21 |
| Words that concern? | 19 |
| Words of concern? | 17 |
| Words before a subject | 22 |
| With regard to, on memos | 24 |
| With reference to (legalese) | 28 |
| Topic precursor | 15 |
| To do with | 10 |
| Subject-line heading | 20 |
| Subject precursor | 17 |
| Subject line starter | 20 |
| Subject line heading | 20 |
| Subject line abbr. | 18 |
| Subject heading abbr. | 21 |
| Subject clarification letters | 29 |
| Start of a legal clarification | 30 |
| Regarding, to lawyers | 21 |
| Regarding, to counsel | 21 |
| Regarding, in legal memos | 25 |
| Regarding (legalese) | 20 |
| Referencing | 11 |
| Reference preceder | 18 |
| Ref. in a lawyer's letter | 29 |
| Preceder of a case name | 23 |
| Phrase usually before a colon | 29 |
| Phrase on a legal memo | 22 |
| Phrase atop a lawyer's letter | 33 |
| Pertaining to, briefly | 22 |
| On the topic of, briefly | 24 |
| Office memo heading | 19 |
| Memorandum phrase | 17 |
| Memo's subj. preceder | 25 |
| Memo-starting phrase | 20 |
| Memo term | 9 |
| Memo leadoff | 12 |
| Memo lead-off | 13 |
| Memo label | 10 |
| Memo intro, sometimes | 21 |
| Memo header that looks like an abbreV. | 38 |
| Memo "apropos of" | 27 |
| Legalese words | 14 |
| Legalese heading | 16 |
| Legal-memo starter | 18 |
| Legal memo's "concerning" | 39 |
| Legal memo topper | 17 |
| Legal letter phrase | 19 |
| Legal heading | 13 |
| Legal abbreviation | 18 |
| Latin phrase on a memo | 22 |
| It usually precedes a subject | 29 |
| Interoffice memo heading | 24 |
| Frequent memo intro | 19 |
| E-mail leadoff | 14 |
| Docket phrase | 13 |
| Dictator's words | 20 |
| Dictator's start | 20 |
| Dictator's phrase, sometimes | 32 |
| Dictator's opening | 22 |
| Dictator's beginning | 24 |
| Court case title phrase | 23 |
| Context-establishing words | 26 |
| Concerning: L. | 14 |
| Concerning, to counsel | 22 |
| Concerning, to a memo writer | 28 |
| Concerning, in legalspeak | 25 |
| Concerning, at law | 18 |
| Citer's opening | 19 |
| Business-letter words | 21 |
| Business-letter term | 20 |
| Business-letter notation | 24 |
| Business memo's heading | 27 |
| Business letter opener | 22 |
| Brief start | 11 |
| Brief phrase | 12 |
| Brief beginning | 15 |
| As to, on memos | 15 |
| As to, in memos | 15 |
| As to, in legal memos | 21 |
| As to, briefly | 14 |
| As concerns | 11 |