# CREATE methods

# {{{ new                constructor...
# {{{ read               read and parse lexicon from file...
# {{{ restore            fast restore of dumped lexicon...

# QUERY methods

# {{{ isin               is the $key in this lexicon...
# {{{ info               information about the contents of this lexicon object...

# MODIFY methods

# {{{ add_entry          add entry to lexicon...
# {{{ add_entries        add entries to lexicon...
# {{{ add_meaning        add meaning IF DISJOINT else DISCARD or REPLACE...
# {{{ del_entries        delete entries from lexicon...

# {{{ merge              merge some other lexicon to this one...
# {{{ consolidate        consolidate this lexicon...
# {{{ dump               dump lexicon for fast recovery...

# DERIVE methods

# {{{ expand             expand one entry...