This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. To cause to board a vessel or aircraft: stopped to embark passengers.

v. To enlist (a person or persons) or invest (capital) in an enterprise.

verb-intransitive. To go aboard a vessel or aircraft, as at the start of a journey.

verb-intransitive. To set out on a venture; commence: embark on a world tour.

v. To get on a boat or ship or (outside the USA) an aeroplane.

v. To start, begin.

v. To cause to go on board a vessel or boat; to put on shipboard.

v. To engage, enlist, or invest (as persons, money, etc.) in any affair.

verb-intransitive. To go on board a vessel or a boat for a voyage.

verb-intransitive. To engage in any affair.

To put on board a ship or other vessel: as, the general embarked his troops and their baggage.

Hence To place or venture; put at use or risk, as by investment; put or send forth, as toward a destination: as, he embarked his capital in the scheme.

To go on board ship, as when setting out on a voyage: as, the troops embarked for Lisbon.

To set out, as in some course or direction; make a start or beginning in regard to something; venture; engage.

v. go on board

v. set out on (an enterprise or subject of study)

v. proceed somewhere despite the risk of possible dangers

"The dark trauma that followed Flo's death inspired Zaka embark on a documentary project, a tribute to the life of his friend."

disembark   

embarked    embarking    embarks   

proceed    move    go   

embarked    embarking    disembarkee    disembarcation   

ship    invest    engage   

Ark    Clark    Clarke    Lark    Marc    Mark    Merc    Park    Sark    Spark   

negro-man    project    Foreign Service    rectilineal    bracken    grizzle-bearded    viatical    fifth-year    end-of-the-day    noncommissioned