| .ad | Justify | Previous adjust | Adjust margins. |
| .af | Lowercase arabic | - | Assign a format to a register. |
| .am | - | End call with .. | Append to a macro. |
| .bd | Off | - | Embolden font. |
| .c2 | ; | ; | Set no-break control character. |
| .cc | . | . | Set control character. |
| .ce | Off | Center one line | Center lines. |
| .ch | - | Turn off trap | Change trap position. |
| .cs | Off | - | Set constant-width spacing. |
| .cu | 0 | 1 line | Continuous underline/italicize. |
| .da | - | End the diversion | Divert text and append to a macro. |
| .de | - | End macro with .. | Define a macro. |
| .di | - | End the diversion | Divert text to a macro. |
| .dt | - | Turn off trap | Set a diversion trap. |
| .ec | \ | \ | Set escape character. |
| .eo | On | - | Turn off escape character. |
| .ev | 0 | Prev. environment | Change environment. |
| .fc | Off | Off | Set field delimiter and pad character. |
| .fi | Fill | - | Fill lines. |
| .fp | 1 = R | - | Mount font (on positions 1-4). |
| 2 = I | | |
| 3 = B | | |
| 4 = S | | |
| .ft | Roman | Previous font | Set font. |
| .hc | \% | \% | Set hyphenation character. |
| .hy | Mode 1 | Previous mode | Set hyphenation mode. |
| .ig | - | End with .. | Suppress (ignore) text in output. |
| .in | 0 | Previous indent | Indent. |
| .it | - | Turn off trap | Set a trap for input line counting. |
| .lc | . | None | Set leader character. |
| .lg | On | On | Ligature mode. |
| .ll | 6.5" | Prev. line length | Set line length. |
| .ls | Single-space | Previous mode | Set line spacing. |
| .lt | 6.5" | Prev. title length | Set length of title. |
| .mc | - | Turn off | Set the margin character. |
| .mk | - | Internal | Mark vertical position. |
| .na | Adjust | - | Don't adjust margins. |
| .ne | - | One vertical line | Keep lines on same page if there's room. |
| .nf | Fill | - | Don't fill lines. |
| .nh | On | - | Turn of hyphenation. |
| .nm | Off | Off | Line-numbering mode. |
| .nn | - | Number one line | Don't number lines. |
| .ns | Space mode | - | Enable no-space mode. |
| .nx | - | End of file | Go to a file. |
| .pc | % | Off | Set page character. |
| .pl | 11" | 11" | Set page length. |
| .pn | Page 1 | - | Set page number. |
| .po | 0 (nroff) | Previous offset | Change page offset. |
| 26/27" (troff) | | |
| .ps | 10 | Prev. point size | Set point size. |
| .rd | - | Ring bell | Read from the terminal. |
| .rt | - | Internal | Return to marked vertical place. |
| .sp | - | One vertical line | Output blank spacing. |
| .ss | 12/36 em | - | Set character spacing. |
| .sv | - | One vertical line | Save (store) spacing. |
| .ta | .5" (troff) | - | Define tab settings. |
| 8 em (nroff) | | |
| .ti | 0 | - | Indent next line. |
| .tm | - | Newline | Print a message, then continue. |
| .uf | Italic | Italic | Set font for underlining. |
| .ul | 0 | 1 line | Underline/italicize. |
| .vs | 1/6" (nroff) | Previous value | Set vertical spacing for lines. |
| 12 pts (troff) | | |
