19 Word abbreviation commands

Keystrokes	Command name	Action
M-/	dabbrev-expand	Complete this word based on the nearest word that starts with this string (pressM-/ again if that’s not the word you want).
(none)	abbrev-mode	Enter (or exit) word abbreviation mode.
C-x a - or C-x a i g	inverse-add-global-abbrev	After typing the global abbreviation, type the definition.
C-x a i l	inverse-add-mode-abbrev	After typing the local abbreviation, type the definition.
(none)	unexpand-abbrev	Undo the last word abbreviation.
(none)	write-abbrev-file	Write the word abbreviation file.
(none)	edit-abbrevs	Edit the word abbreviations.
(none)	list-abbrevs	View the word abbreviations.
(none)	kill-all-abbrevs	Kill abbreviations for this session.

Word abbreviation capitalization

Abbreviation	Definition	You type:	Expands to:	Because:
lc	lamb chop	lc	lamb chop	lc is lowercase, so lamb chop is lowercase.
lc	lamb chop	Lc	Lamb chop	There’s one capital inLc, so Lamb is capitalized.
lc	lamb chop	lC	Lamb chop	There’s one capital inlC, so Lamb is capitalized.
lc	lamb chop	LC	Lamb Chop	LC is all capitals, so both words are capitalized.
lc	Lamb Chop	lc	Lamb Chop	Capitals in the definition are always unchanged.
lc	Lamb Chop	LC	Lamb Chop	Capitals in the definition are always unchanged.