| Informal pub | 12 |
| Informal qualifier | 18 |
| Informal race-starting words | 28 |
| Informal reception | 18 |
| Informal receptions | 19 |
| Informal refusal | 16 |
| Informal refusals | 17 |
| Informal rejection | 18 |
| Informal rejections | 19 |
| Informal remarks? | 17 |
| Informal repayment promise | 26 |
| Informal reply to "Who's there?" | 46 |
| Informal reproach | 17 |
| Informal request to an accountant? | 34 |
| Informal response to ''Who's there?'' | 57 |
| Informal response to "Who's there?" | 49 |
| Informal restaurant | 19 |
| Informal restaurants | 20 |
| Informal science | 16 |
| Informal shirt | 14 |
| Informal shirts | 15 |
| Informal show of approval | 25 |
| Informal show of approval? | 26 |
| Informal sign-off | 17 |
| Informal social gathering | 25 |
| Informal Spanish eatery | 23 |
| Informal speech | 15 |
| Informal speech of ancient Rome | 31 |
| Informal states? | 16 |
| Informal street sign word | 25 |
| Informal survey | 15 |
| Informal taboos | 15 |
| Informal talk | 13 |
| Informal talks | 14 |
| Informal term of address, in Britain | 36 |
| Informal title | 14 |
| Informal title of respect | 25 |
| Informal top | 12 |
| Informal tops | 13 |
| Informal traffic reporter | 25 |
| Informal trousers | 17 |
| Informal truce talk | 19 |
| Informal turndown | 17 |
| Informal turndowns | 18 |
| Informal union after the Holy Alliance | 38 |
| Informal Valentine word | 23 |
| Informal verbiage | 17 |
| Informal vernacular | 19 |
| Informal version of super- | 26 |
| Informal voucher | 16 |
| Informal warning | 16 |
| Informal wear | 13 |
| Informal wear, informally | 25 |
| Informal welcome | 16 |
| Informal women's attire | 27 |
| Informal word for a wife | 24 |
| Informal word of appreciation | 29 |
| Informal words | 14 |
| Informal words of concurrence | 29 |
| Informal writing | 16 |
| Informal yes | 12 |
| Informality | 11 |
| Informally intimate | 19 |
| Informally, popularizer of "White Christmas" | 54 |
| Informant | 9 |
| Informant's accessory | 25 |
| Informant's activity | 24 |
| Informant's tidbits | 23 |
| Informant's wear | 20 |
| Informant, informally | 21 |
| Information | 11 |
| Information accessed on a computer | 34 |
| Information Age memo | 20 |
| Information Age salon | 21 |
| Information available to everyone | 33 |
| Information bank | 16 |
| Information banks of a sort | 27 |
| Information bit | 15 |
| Information booth handout | 25 |
| Information booth visitor | 25 |
| Information broker | 18 |
| Information brokerages | 22 |
| Information channels | 20 |
| Information collection on a computer | 36 |
| Information decoder, maybe | 26 |
| Information desk offering | 25 |
| Information disparity in a social system | 40 |
| Information for an oenologist | 29 |
| Information for the record | 26 |
| Information from tree rings | 27 |
| Information gatherer | 20 |
| Information gathering session | 29 |
| Information gleaned from a dating site | 38 |
| Information highway | 19 |
| Information holder | 18 |
| Information holders | 19 |
| Information in a tree | 21 |
| Information information | 23 |
| Information inside a jewel box | 30 |
| Information measure | 19 |